new features

gallery URLS -- copy the URL while viewing an image/video in the gallery
option to change/disable the gallery animations in the UI
- default from OS preferences through prefers-reduced-motion
decode terminal colors when viewing diz, ans, log textfiles
thumbnails:
- option to use pyvips instead of (or in addition to) pillow, 3x faster than pillow
- add ffmpeg as fallback for creating thumbnails of pictures too, 3x slower than pillow
  - so now it can read jpeg-xl files + a bunch more
    - including pdf which is disabled by default because scary
- new args to specify which file formats to read using which backend
  - --th-r-pil, --th-r-vips, --th-r-ffi, --th-r-ffv, --th-r-ffa
- new arg --th-dec specifies backend preference, default pyvips > pillow > ffmpeg
- volflags to disallow thumbnails inside specific volumes
  - dvthumb for video, dathumb for audio, dithumb for pics, dthumb to disable all
- try to detect and adjust for missing ffmpeg features
  - adds --th-ff-jpg and --th-ff-swr when necessary but it breaks the first few thumbs
flat theme, selectable in the settings tab
- new arg --theme sets default theme, default 0 = old dark theme
- new arg --themes adds more theme buttons to the UI if you've included your own theme through --css-browser

bugfixes

more aggressively prevent systemd from deleting the sfx from /tmp while copyparty is running
javascript crash if media player settings were changed without music playing

add mpc/musepack to known audio formats (for streaming and spectrogram thumbnails)