Lack of close button on Add restaurant overlay (Enatega multivendor admin app)

Is your feature request related to a problem? Please describe.
Add restaurant overlay gets closed when a user clicks outside the overlay. This can be by mistake but the user looses all the filled-in infos.

Describe the solution you'd like
Provide CLOSE button on the overlay, instead of closing it by the click outside the overlay.

Add.restaurant.mov
Describe alternatives you've considered
A clear and concise description of any alternative solutions or features you've considered.

Additional context
Add any other context or screenshots about the feature request here.

Search the frontend for the Add restaurant overlay and the behavior that dismisses it when a click occurs outside. Run the admin app and reproduce the accidental dismissal, then verify that the overlay has a visible close control and that clicking outside no longer closes it.

Written by the indexing model from the issue text.