Update to version 23.06.04
* display 10 bit RGB images as 10 bit using Vulkan if possible,
* load external subtitles that are in sub-directories,
* add file name and time into screenshot file name,
* more precission for playback speed control,
* don't display "Deep color" using Vulkan,
* improve bitmap subtitles aspect ratio,
* add WebP as screenshots file format,
* PipeWire mono and 4 chnannels fix,
* VA-API fixes for AMD Radeon GPUs,
* remove makeitpersonal.co lyrics,
* add FPS Doubler video filter,
* "Always on top" improvement,
* Qt6 support for Linux,
* Wayland Vulkan fixes,
* YouTube fixes,
* other minor fixes and improvements.
- Added support for building with Qt6
- Removed 0001-fix-broken-yt-dlp.patch as it is merged upstream
- Removed 0001-fix-mono-playback.patch as it is merged upstream
- Removed 0001-fix-overlay-focus.patch as it is merged upstream
- Improve patch comments in spec file to better comply with
packaging guidelines