Fix remote object read-only + remove relations (#4921)

- Set `readOnly` boolean in table row context. Preventing updates and
deletion
- Show page is null for remote objects. No need for complicated design
since this is temporary?
- Relation creations are now behind a feature flag for remote objects
- Refetch objects and views after syncing objects

---------

Co-authored-by: Thomas Trompette <thomast@twenty.com>

packages/twenty-server/src/engine/workspace-manager/workspace-sync-metadata/commands/add-standard-id.command.ts

@@ -59,6 +59,7 @@ export class AddStandardIdCommand extends CommandRunner {
             IS_AIRTABLE_INTEGRATION_ENABLED: true,
             IS_POSTGRESQL_INTEGRATION_ENABLED: true,
             IS_MULTI_SELECT_ENABLED: false,
+            IS_RELATION_FOR_REMOTE_OBJECTS_ENABLED: false,
           },
         );
       const standardFieldMetadataCollection = this.standardFieldFactory.create(
@@ -74,6 +75,7 @@ export class AddStandardIdCommand extends CommandRunner {
           IS_AIRTABLE_INTEGRATION_ENABLED: true,
           IS_POSTGRESQL_INTEGRATION_ENABLED: true,
           IS_MULTI_SELECT_ENABLED: false,
+          IS_RELATION_FOR_REMOTE_OBJECTS_ENABLED: false,
         },
       );