- Add support for HEIC/HEIF image thumbnails and previews
- Replace dependency "pillow_avif_plugin" with "pi-heif"
- Remove unused dependencies in ts_cli.py
- Add thumbnail and preview support for RAW images ["raw", "dng", "rw2", "nef", "arw", "crw", "cr3"]
- Optimize the preview panel's dimension calculations (still need to move this elsewhere)
- Refactored use of "Path" in thumb_renderer.py