docs: improve database operations docs + added data model repository reference (#12273)

* some changes

* docs: improve database operations docs + add data model repository reference

* regenerate

www/apps/resources/utils/get-sidebar-for-path.ts

@@ -123,6 +123,7 @@ const sidebarMappings: {
       "/references/workflows",
       "/references-overview",
       "/references/medusa-workflows",
+      "/data-model-repository-reference",
     ],
   },
   {