Implement reading of artists, albums, and tracks. Fixed a bug related to unnecessary file name parsing. Fix SIGSEGV related to file name parsing and koto_utils_get_filename_without_extension.
Implemented an unquote string function for use when reading database entries. Try to fix some weird random rendering issues. Changed where we are doing some KotoPageMusicLocal widget construction.
This database will be stored in the user's XDG_DATA_HOME directory under a folder called `com.github.joshstrobl.koto`.
Refactored Koto Track Listing into a dedicated Disc View component, break apart out CDs / Discs into relevant Disc View components, sorting them by the disc and showing a label if there are more than one discs / CDs.
Started using the row-activated event for our Artist GtkListBox instead of having press events on the artist buttons. Makes switching between artists far more reliable. Added a slide left / right stack animation and set its animation to 400ms so it's in the goldilocks zone (IMO) of not being too fast or too slow.
Fix a warning related to scale factor fetching in the PlayerBar.
