docs: changes to main docs sidebar (#11750)

* docs: changes to main docs sidebar

* fix links

* fix vale test

* fix vale errors

www/apps/resources/generated/files-map.mjs

@@ -763,14 +763,6 @@ export const filesMap = [
     "filePath": "/www/apps/resources/app/commerce-modules/user/workflows/page.mdx",
     "pathname": "/commerce-modules/user/workflows"
   },
-  {
-    "filePath": "/www/apps/resources/app/contribution-guidelines/admin-translations/page.mdx",
-    "pathname": "/contribution-guidelines/admin-translations"
-  },
-  {
-    "filePath": "/www/apps/resources/app/contribution-guidelines/docs/page.mdx",
-    "pathname": "/contribution-guidelines/docs"
-  },
   {
     "filePath": "/www/apps/resources/app/create-medusa-app/page.mdx",
     "pathname": "/create-medusa-app"
@@ -1267,10 +1259,6 @@ export const filesMap = [
     "filePath": "/www/apps/resources/app/troubleshooting/workflow-errors/page.mdx",
     "pathname": "/troubleshooting/workflow-errors"
   },
-  {
-    "filePath": "/www/apps/resources/app/usage/page.mdx",
-    "pathname": "/usage"
-  },
   {
     "filePath": "/www/apps/resources/references/api_key/IApiKeyModuleService/methods/api_key.IApiKeyModuleService.authenticate/page.mdx",
     "pathname": "/references/api_key/IApiKeyModuleService/methods/api_key.IApiKeyModuleService.authenticate"