docs: revise commerce modules overview pages (#10738)

* revise API Key Module overview

* revise auth module

* support ref sidebar items

* remove examples

* revise cart module

* revise currency

* revise customer module

* revise fulfillment module

* revise inventory module

* revise order module

* revise payment

* revise pricing module

* revise product module

* revise promotion module

* revise region module

* revise sales channel module

* revise stock location module

* revise store module

* revise tax module

* revise user module

* lint content + fix snippets

www/apps/resources/sidebars/order-module.mjs

@@ -11,8 +11,12 @@ export const orderSidebar = [
         title: "Overview",
       },
       {
-        type: "sub-category",
+        type: "separator",
+      },
+      {
+        type: "category",
         title: "Concepts",
+        initialOpen: false,
         children: [
           {
             type: "link",
@@ -72,8 +76,51 @@ export const orderSidebar = [
         ],
       },
       {
-        type: "sub-category",
+        type: "category",
+        title: "Server Guides",
+        autogenerate_tags: "server+order",
+        initialOpen: false,
+        autogenerate_as_ref: true,
+      },
+      {
+        type: "category",
+        title: "Storefront Guides",
+        autogenerate_tags: "storefront+order",
+        initialOpen: false,
+        autogenerate_as_ref: true,
+      },
+      {
+        type: "category",
+        title: "Admin Guides",
+        autogenerate_tags: "admin+order",
+        initialOpen: false,
+        autogenerate_as_ref: true,
+      },
+      {
+        type: "category",
+        title: "User Guides",
+        autogenerate_tags: "userGuides+order",
+        initialOpen: false,
+        autogenerate_as_ref: true,
+      },
+      {
+        type: "category",
+        title: "Workflows",
+        autogenerate_tags: "workflow+order",
+        initialOpen: false,
+        autogenerate_as_ref: true,
+      },
+      {
+        type: "category",
+        title: "Steps",
+        autogenerate_tags: "step+order",
+        initialOpen: false,
+        autogenerate_as_ref: true,
+      },
+      {
+        type: "category",
         title: "References",
+        initialOpen: false,
         children: [
           {
             type: "link",