Update to electron >28 to enable native wayland support and fix NVIDIA issues.

NVIDIA has several issues with xwayland apps. The most annoying issue is the flashing window. To avoid this bug you need to run the app in native wayland using ozone-platform.

Your current electron version is unable to read the --ozone-platform so it will run always in xwayland.

Please update to electron 28 or newer and set `emby-theater --ozone-platform-hint=auto` as default.