fix(dashboard) Standardize heading levels for consistent hierarchy (#13861)

## Summary

**What** — What changes are introduced in this PR?

This PR standardizes heading levels across dashboard components to maintain proper semantic HTML hierarchy.

**Why** — Why are these changes relevant or necessary?  

*Please provide answer here*

**How** — How have these changes been implemented?

- Added optional `headingLevel` prop `"h1" | "h2" | "h3"` to `DataTable` component with default value of `"h1"`

- Modified `Heading` component usage to explicitly specify the appropriate level based on context

**Testing** — How have these changes been tested, or how can the reviewer test the feature?

*Please provide answer here*

---

## Checklist

Please ensure the following before requesting a review:

- [x] I have added a **changeset** for this PR
    - Every non-breaking change should be marked as a **patch**
    - To add a changeset, run `yarn changeset` and follow the prompts
- [ ] The changes are covered by relevant **tests**
- [x] I have verified the code works as intended locally
- [ ] I have linked the related issue(s) if applicable

.changeset/hungry-buses-fry.md

@@ -0,0 +1,5 @@
+---
+"@medusajs/dashboard": patch
+---
+
+fix(dashboard) standardize heading levels for consistent hierarchy

packages/admin/dashboard/src/components/data-table/data-table.tsx

@@ -77,6 +77,7 @@ interface DataTableProps<TData> {
   rowHref?: (row: TData) => string
   emptyState?: DataTableEmptyStateProps
   heading?: string
+  headingLevel?: "h1" | "h2" | "h3"
   subHeading?: string
   prefix?: string
   pageSize?: number
@@ -117,6 +118,7 @@ export const DataTable = <TData,>({
   enableFilterMenu,
   rowHref,
   heading,
+  headingLevel = "h1",
   subHeading,
   prefix,
   pageSize = 10,
@@ -384,7 +386,7 @@ export const DataTable = <TData,>({
           <div className="flex items-center gap-x-4">
             {shouldRenderHeading && (
               <div>
-                {heading && <Heading>{heading}</Heading>}
+                {heading && <Heading level={headingLevel}>{heading}</Heading>}
                 {subHeading && (
                   <Text size="small" className="text-ui-fg-subtle">
                     {subHeading}

packages/admin/dashboard/src/routes/api-key-management/api-key-management-detail/components/api-key-sales-channel-section/api-key-sales-channel-section.tsx

@@ -56,6 +56,7 @@ export const ApiKeySalesChannelSection = ({
         filters={filters}
         commands={commands}
         heading={t("salesChannels.domain")}
+        headingLevel="h2"
         getRowId={(row) => row.id}
         rowCount={count}
         isLoading={isPending}

packages/admin/dashboard/src/routes/api-key-management/api-key-management-list/components/api-key-management-list-table/api-key-management-list-table.tsx

@@ -53,7 +53,7 @@ export const ApiKeyManagementListTable = ({
     <Container className="divide-y p-0">
       <div className="flex items-center justify-between px-6 py-4">
         <div>
-          <Heading level="h2">
+          <Heading level="h1">
             {keyType === "publishable"
               ? t(`apiKeyManagement.domain.publishable`)
               : t("apiKeyManagement.domain.secret")}

packages/admin/dashboard/src/routes/campaigns/campaign-detail/components/campaign-budget/campaign-budget.tsx

@@ -30,19 +30,14 @@ export const CampaignBudget = ({ campaign }: CampaignBudgetProps) => {
   return (
     <Container className="flex flex-col gap-y-4 px-6 py-4">
       <div className="flex justify-between">
-        <div className="flex-grow">
+        <div className="mb-2 grid flex-grow grid-cols-[28px_1fr] items-center gap-x-3">
-          <div className="bg-ui-bg-base shadow-borders-base float-start flex size-7 items-center justify-center rounded-md">
+          <div className="bg-ui-bg-base shadow-borders-base flex size-7 items-center justify-center rounded-md">
             <div className="bg-ui-bg-component flex size-6 items-center justify-center rounded-[4px]">
               <ChartPie className="text-ui-fg-subtle" />
             </div>
           </div>
 
-          <Heading
+          <Heading level="h2">{getTranslation()}</Heading>
-            className="text-ui-fg-subtle ms-10 mt-[1.5px] font-normal"
-            level="h3"
-          >
-            {getTranslation()}
-          </Heading>
         </div>
 
         <ActionMenu

packages/admin/dashboard/src/routes/campaigns/campaign-detail/components/campaign-spend/campaign-spend.tsx

@@ -19,7 +19,7 @@ export const CampaignSpend = ({ campaign }: CampaignSpendProps) => {
           </div>
         </div>
 
-        <Heading level="h3" className="text-ui-fg-subtle font-normal">
+        <Heading level="h2">
           {campaign.budget?.type === "use_by_attribute"
             ? t("campaigns.fields.totalUsedByAttribute")
             : campaign.budget?.type === "spend"

packages/admin/dashboard/src/routes/campaigns/campaign-list/components/campaign-list-table.tsx

@@ -50,7 +50,7 @@ export const CampaignListTable = () => {
   return (
     <Container className="divide-y p-0">
       <div className="flex items-center justify-between px-6 py-4">
-        <Heading level="h2">{t("campaigns.domain")}</Heading>
+        <Heading level="h1">{t("campaigns.domain")}</Heading>
         <Link to="/campaigns/create">
           <Button size="small" variant="secondary">
             {t("actions.create")}

packages/admin/dashboard/src/routes/inventory/inventory-detail/components/inventory-item-location-levels.tsx

@@ -15,7 +15,7 @@ export const InventoryItemLocationLevelsSection = ({
   return (
     <Container className="divide-y p-0">
       <div className="flex items-center justify-between px-6 py-4">
-        <Heading>{t("inventory.locationLevels")}</Heading>
+        <Heading level="h2">{t("inventory.locationLevels")}</Heading>
         <Button size="small" variant="secondary" asChild>
           <Link to="locations">{t("inventory.manageLocations")}</Link>
         </Button>

packages/admin/dashboard/src/routes/inventory/inventory-detail/components/inventory-item-reservations.tsx

@@ -15,7 +15,7 @@ export const InventoryItemReservationsSection = ({
   return (
     <Container className="divide-y p-0">
       <div className="flex items-center justify-between px-6 py-4">
-        <Heading>{t("reservations.domain")}</Heading>
+        <Heading level="h2">{t("reservations.domain")}</Heading>
         <Button size="small" variant="secondary" asChild>
           <Link to={`/reservations/create?item_id=${inventoryItem.id}`}>
             {t("actions.create")}

packages/admin/dashboard/src/routes/price-lists/price-list-detail/components/price-list-product-section/price-list-product-section.tsx

@@ -113,7 +113,7 @@ export const PriceListProductSection = ({
   return (
     <Container className="divide-y p-0">
       <div className="flex items-center justify-between px-6 py-4">
-        <Heading>{t("priceLists.products.header")}</Heading>
+        <Heading level="h2">{t("priceLists.products.header")}</Heading>
         <ActionMenu
           groups={[
             {

packages/admin/dashboard/src/routes/products/product-detail/components/product-variant-section/product-variant-section.tsx

@@ -103,6 +103,7 @@ export const ProductVariantSection = ({
         pageSize={PAGE_SIZE}
         isLoading={isPending}
         heading={t("products.variants.header")}
+        headingLevel="h2"
         emptyState={{
           empty: {
             heading: t("products.variants.empty.heading"),

packages/admin/dashboard/src/routes/products/product-list/components/product-list-table/product-list-table.tsx

@@ -68,7 +68,7 @@ export const ProductListTable = () => {
   return (
     <Container className="divide-y p-0">
       <div className="flex items-center justify-between px-6 py-4">
-        <Heading level="h2">{t("products.domain")}</Heading>
+        <Heading level="h1">{t("products.domain")}</Heading>
         <div className="flex items-center justify-center gap-x-2">
           <Button size="small" variant="secondary" asChild>
             <Link to={`export${location.search}`}>{t("actions.export")}</Link>

packages/admin/dashboard/src/routes/promotions/promotion-detail/components/promotion-conditions-section/promotion-conditions-section.tsx

@@ -58,7 +58,7 @@ export const PromotionConditionsSection = ({
     <Container className="p-0">
       <div className="flex items-center justify-between px-6 py-4">
         <div className="flex flex-col">
-          <Heading>
+          <Heading level="h2">
             {t(
               ruleType === "target-rules"
                 ? `promotions.fields.conditions.${ruleType}.${applicationMethodTargetType}.title`

packages/admin/dashboard/src/routes/promotions/promotion-list/components/promotion-list-table/promotion-list-table.tsx

@@ -55,7 +55,7 @@ export const PromotionListTable = () => {
   return (
     <Container className="divide-y p-0">
       <div className="flex items-center justify-between px-6 py-4">
-        <Heading level="h2">{t("promotions.domain")}</Heading>
+        <Heading level="h1">{t("promotions.domain")}</Heading>
 
         <Button size="small" variant="secondary" asChild>
           <Link to="create">{t("actions.create")}</Link>