v0.20.0

• Add audio visualiser (thanks to help from @zachwinter)
• Add filtering for specific fields in search, like artist:apashe or album:"mirai sekai". You can also right-click a column header to add a filter. Filtering by artist also finds featured artists, remixers etc in the song title.
• Add genre autocomplete
• Make macOS media key permission request non-intrusive
• Improve error and crashing behaviour
• 2x faster library loading at startup
• Slightly faster scroll performance
• Fix error when removing last column