feat(subsonic): add avatar support

closes: #228

db/migrations.go

@@ -43,6 +43,7 @@ func (db *DB) Migrate(ctx MigrationContext) error {
 		construct(ctx, "202202241218", migratePublicPlaylist),
 		construct(ctx, "202204270903", migratePodcastDropUserID),
 		construct(ctx, "202206011628", migrateInternetRadioStations),
+		construct(ctx, "202206101425", migrateUser),
 	}
 
 	return gormigrate.
@@ -363,3 +364,10 @@ func migrateInternetRadioStations(tx *gorm.DB, _ MigrationContext) error {
 	).
 		Error
 }
+
+func migrateUser(tx *gorm.DB, _ MigrationContext) error {
+	return tx.AutoMigrate(
+		User{},
+	).
+		Error
+}