Fix logo format for Sweet Transit

Author: SimonDarksideJ

website/_data/games.json

@@ -870,7 +870,7 @@
         "name": "sweettransit",
         "title": "Sweet Transit",
         "logo": "sweettransit-logo.png",
-        "screenshot": "sweettransit-screenshot.png",
+        "screenshot": "sweettransit-screenshot.jpg",
         "url": "https://store.steampowered.com/app/1612770/Sweet_Transit/",
         "pixelart": false,
         "tags": [