[FIX] Lookup OfferImage images in metadata

[arielj]

Looks like images in the metadata of early access games can have different keys than the DieselGameBox ones we look for currently. We have to look for OfferImageWide an OfferImageTall too.

This is what it looks like for Path of Exile 2:

    "keyImages": [
      {
        "height": 1600,
        "md5": "7262fe7eb7693daae6af25dfc5188383",
        "size": 377431,
        "type": "OfferImageTall",
        "uploadedDate": "2025-12-08T18:10:39.646Z",
        "url": "https://cdn1.epicgames.com/item/58a18be6bbba41a0bf52b014bb81d33b/EGS_PathofExile2_GrindingGearGames_S2_1200x1600-7262fe7eb7693daae6af25dfc5188383",
        "width": 1200
      },
      {
        "height": 1440,
        "md5": "56206c309622e9cdb8bb0560085c5a9c",
        "size": 569662,
        "type": "OfferImageWide",
        "uploadedDate": "2025-12-08T18:10:43.601Z",
        "url": "https://cdn1.epicgames.com/item/58a18be6bbba41a0bf52b014bb81d33b/EGS_PathofExile2_GrindingGearGames_S1_2560x1440-56206c309622e9cdb8bb0560085c5a9c",
        "width": 2560
      }
    ]

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Use the following Checklist if you have changed something on the Backend or Frontend:

• Tested the feature and it's working on a current and clean install.
• Tested the main App features and they are still working on a current and clean install. (Login, Install, Play, Uninstall, Move games, etc.)
• Created / Updated Tests (If necessary)
• Created / Updated documentation (If necessary)