Add sources for Cat's Gigachu form

media/attribution.js

@@ -11355,8 +11355,8 @@ const attributionData = {
         {
             prefix: "./media/characters/cat-gigachu/",
             files: [
-                { name: "front.svg", source: null },
-                { name: "back.svg", source: null },
+                { name: "front.svg", source: "https://twitter.com/CatTinyPaws/status/1353828763801444352" },
+                { name: "back.svg", source: "https://twitter.com/CatTinyPaws/status/1353828763801444352" },
             ],
             authors: [
                 "cattinypaws"