New features

Conversion: Add support for reading images in the JPEG XL format
Conversion: Add support for CSS Level 4 selectors
Edit book: Check book: Add a check for dangling ARIA references and update ARIA references when auto fixing invalid ids
Closes tickets: 2170895

MOBI/AZW3/PDB Output: Speed up compression, making conversion to these formats faster
Content server/E-book viewer: Honor the prefers-reduced-motion setting of the operating system
Speed up adding books and starting calibre in large libraries with the Tag browser hidden
Catalogs: Use calibre as the creator of generated catalogs and record the generation date as the publication date
Closes tickets: 2022353

Create your own Adventure: Improve the character selection screen