disable fullscreen button when not usable

[DreadKnight]

The in-game fullscreen button is not able to leave that mode in some scenarios, displaying an error about using F11, like when used as a PWA on mobile. Should rather make that button not usable (faded out and semi hidden). Depends on issue #1730 to be fixed.

[himankpathak]

Hey @DreadKnight, how can we detect that we are on mobile in PWA?

[DreadKnight]

@himankpathak You would have to google, research and try solutions. It's your best friend as a developer and not only for that.
A lot of seemingly issues are open around here because I don't have the knowledge, time or energy to tackle them all by myself.
I bumped into an article might it's about 2 years or so it's probably outdated https://www.xspdf.com/resolution/52695341.html

[Lexinka291]

Can I take this issue please?

[DreadKnight]

@Lexinka291 Sure thing, go for it. Hope you manage :)