Fix listenbrainz submission and clarify MusicBrainz recording ID field (#2279)

* Fix MB recording ID parameter name for ListenBrainz submission

This follows the ListenBrainz API documentation.

Fixes #1657

* Rename MediaFile.MbzTrackID to MbzRecordingID

This better reflects the actual data. That the MusicBrainz
recording ID is stored in file metadata as musicbrainz_trackid
is a historical artifact.

* Rename database column mbz_track_id to mbz_recording_id

db/migration/20230616214944_rename_musicbrainz_recording_id.go

@@ -0,0 +1,27 @@
+package migrations
+
+import (
+	"database/sql"
+
+	"github.com/pressly/goose/v3"
+)
+
+func init() {
+	goose.AddMigration(upRenameMusicbrainzRecordingId, downRenameMusicbrainzRecordingId)
+}
+
+func upRenameMusicbrainzRecordingId(tx *sql.Tx) error {
+	_, err := tx.Exec(`
+alter table media_file
+	rename column mbz_track_id to mbz_recording_id;
+`)
+	return err
+}
+
+func downRenameMusicbrainzRecordingId(tx *sql.Tx) error {
+	_, err := tx.Exec(`
+alter table media_file
+	rename column mbz_recording_id to mbz_track_id;
+`)
+	return err
+}