Fix: New Tab Menu Not Displayed During Fullscreen Video Playback

[luisbettencourt]

Fixes #5229 by exiting fullscreen mode when opening the new tab menu.

[mr-cheffy]

I dont think exiting fullscreen is the best option to be honest. Maybe we should see why it isnt showing in the first place.

[luisbettencourt]

I dont think exiting fullscreen is the best option to be honest. Maybe we should see why it isnt showing in the first place.

I tweaked the css that hides the sidebar when the browser is in fullscreen mode. Let me know if you think this is the correct approach.

Screencast.From.2025-08-11.15-39-43.webm

[luisbettencourt]

The URL Bar placement looks a bit weird when the Behavior setting is 'Normal' instead of 'Floating only when typing' or 'Always floating', as it slightly clips the top border. Should we always center it when in fullscreen mode or try to fix its position?