Fixed some small bugs after merge

internal/db/migrations/000005_rename_game_to_soundtrack.up.sql

@@ -13,7 +13,6 @@ ALTER TABLE song RENAME COLUMN game_id TO soundtrack_id;
 -- Update song primary key
 ALTER TABLE song DROP CONSTRAINT IF EXISTS song_pkey;
 ALTER TABLE song ADD PRIMARY KEY (soundtrack_id, path);
-ALTER TABLE song RENAME CONSTRAINT song_pkey TO song_pkey_soundtrack;
 
 -- Update song_list table references
 ALTER TABLE song_list RENAME COLUMN game_name TO soundtrack_name;