feat: Support for additional metadata and multi-value metadata (genre, composer)#1852

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chme wants to merge 3 commits intoowntone:masterfrom

chme:feat/extra-metadata

Commits on Feb 1, 2025

[db] DB migration to 22.03; new table files_metadata
chme
committed
[scan] Scan lyrics, genre, composer, musicbrainz IDs into files_metadata for local files
chme
committed
[jsonapi] Use files_metadata for genre/composer; add new browse-albums endpoint; add new tracks-metadata endpoint
chme
committed