* fix(db): resolve schema inconsistencies in library_artist and scrobble_buffer tables
* fix(db): address PR comments around speed of the migration
* fix(db): simplify schema inconsistencies migration
Remove ineffective PRAGMA foreign_keys and cache_size statements, which are
no-ops inside goose's wrapping transaction. Drop the down migration body
(Navidrome does not run down migrations) and document the intent. Rename
the file to refresh the timestamp after rebase.
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Co-authored-by: Deluan Quintão <deluan@navidrome.org>
