chore: Remove feedback and Request a Connector button #4249
Description
The Feedback modal is no longer required since it is not being used in production (the feature flag is currently set to false).
Motivation for this change:
While implementing soft delete for users in the backend (issue #4232), we identified that data for feedback and request a connector was being stored against user_id. However, when a user was deleted, the associated dashboard_metadata was not removed.
With soft delete enabled, a previously deleted user can be restored with the same user_id. This led to a unique constraint violation when attempting to insert metadata again for that user.
After discussion with Product, the backend was updated to delete the corresponding dashboard_metadata when a user is soft deleted. Additionally, the Feedback and Request a Connector features can be removed from the Front-End.