API Updates (#24105)

* fix missing /api/v4 prefix for commands autocomplete suggestion

* document /api/v4/ldap/users/{user_id}/group_sync_memberships

* document /api/v4/groups/{group_id}/restore

* fix /files/{file_id}/public actually at root

* document /api/v4/users/invalid_emails

api/v4/source/files.yaml

@@ -380,7 +380,7 @@
             fileID := "4xp9fdt77pncbef59f4k1qe83o"
 
             info, resp := Client.GetFileInfo(fileID)
-  "/api/v4/files/{file_id}/public":
+  "/files/{file_id}/public":
     get:
       tags:
         - files