[BUG] "Clear IGDB data" button doesn't work

<img width="355" height="206" alt="Image" src="https://github.com/user-attachments/assets/5f9e4bda-4cb3-43f4-8d49-96790b261e22" />

log says:
`INFO:     192.168.1.2:43538 - "POST /api/game/512/igdb HTTP/1.1" 422 Unprocessable Entity`

I've tried it on several games.