Keep the `igdb-api` JSON schema in sync with the backend

[mars885]

The video entities coming from the IGDB API do not contain name field sometimes, which causes an error when trying to load a game inside the game info screen, since that field is required in the JSON schema.

Another issue arises in terms of what to show on the UI side. Two solutions:

• Display some kind of placeholder text, like Video or Trailer.
• Make the video's thumbnail take the height of the missing title