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.

No file or test is named. Start by running the admin app and opening the Add restaurant overlay, then locate the overlay implementation and its outside-click dismissal behavior. Done means the overlay provides a CLOSE button, preserves the requested behavior when used, and no longer closes accidentally when users click outside it.

Written by the indexing model from the issue text.