fix: player not paused when switching to other apps while pauseOnQuit is on

[dhanuarf]

This PR fixes #7614

[FineFindus]

Please move (or integrate this) to the check below that already pauses the screen if the screen is off, to avoid having got sections (in slightly different places) that handle pausing the player.

LibreTube/app/src/main/java/com/github/libretube/ui/fragments/PlayerFragment.kt

Lines 934 to 937 in b0e345a

	// pause player if screen off and setting enabled
	if (!isInteractive && PlayerHelper.pausePlayerOnScreenOffEnabled) {
	playerController.pause()
	}

[dhanuarf]

Please move (or integrate this) to the check below that already pauses the screen if the screen is off, to avoid having got sections (in slightly different places) that handle pausing the player.

Would this be ok?

        val shouldPausePlayer =
            (isInteractive && PlayerHelper.pauseOnQuit) ||
                    (!isInteractive && PlayerHelper.pausePlayerOnScreenOffEnabled)

        if (shouldPausePlayer) {
            playerController.pause()
        }