[FEATURE] implement force fullscreen when entering landscape mode

[HanSoBored]

Is your feature request related to a problem? Please describe.
I use my phone for pomodoro timer, and landscape mode is great for that purpose, but when I go into landscape mode I find it annoying because the main content is cut off (the android status bar and navigation bar are visible).

Describe the solution you'd like
force fullscren when entering landscape mode with smootly force fullscreen

Describe alternatives you've considered
also i was thinking "what if we remove the titled focus and up next in landscape mode?" actually this is a good thing, it will only show the main content, similar to #179, we could also maybe remove the titled and make it icon only

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

[HanSoBored]

maybe like this, but i don't have any idea what the best approach for replace the navigation bar? or it is will be better to just hide it? move to the left side? replace with gesture swipe right/left?

[HanSoBored]

maybe, if you like the approach i can do pr ^^