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/user.mjs

@@ -16,13 +16,14 @@ export const userSidebar = [
         title: "Module Options",
       },
       {
-        type: "link",
-        path: "/commerce-modules/user/examples",
-        title: "Examples",
+        type: "separator",
       },
       {
-        type: "sub-category",
-        title: "Guides",
+        type: "category",
+        title: "Server Guides",
+        autogenerate_tags: "server+user",
+        initialOpen: false,
+        autogenerate_as_ref: true,
         children: [
           {
             type: "link",
@@ -32,8 +33,44 @@ export const userSidebar = [
         ],
       },
       {
-        type: "sub-category",
+        type: "category",
+        title: "Storefront Guides",
+        autogenerate_tags: "storefront+user",
+        initialOpen: false,
+        autogenerate_as_ref: true,
+      },
+      {
+        type: "category",
+        title: "Admin Guides",
+        autogenerate_tags: "admin+user",
+        initialOpen: false,
+        autogenerate_as_ref: true,
+      },
+      {
+        type: "category",
+        title: "User Guides",
+        autogenerate_tags: "userGuides+user",
+        initialOpen: false,
+        autogenerate_as_ref: true,
+      },
+      {
+        type: "category",
+        title: "Workflows",
+        autogenerate_tags: "workflow+user",
+        initialOpen: false,
+        autogenerate_as_ref: true,
+      },
+      {
+        type: "category",
+        title: "Steps",
+        autogenerate_tags: "step+user",
+        initialOpen: false,
+        autogenerate_as_ref: true,
+      },
+      {
+        type: "category",
         title: "References",
+        initialOpen: false,
         children: [
           {
             type: "link",