GE-Proton11-1 Released: Video Playback Rework and Proton 11 Rebase

GE-Proton11-1 has been released, featuring a major video playback rework and a rebase to Proton 11. The update addresses issues with two competing video playback backends (winedmo->ffmpeg and quartz->gstreamer) and introduces d7vk support (disabled by default, toggleable via PROT