feat: prototype big picture mode

shared/composables/generateGameMeta.ts

@@ -0,0 +1,9 @@
+import { type DownloadableMetadata, DownloadableType } from '~/types'
+
+export default function generateGameMeta(gameId: string, version: string): DownloadableMetadata {
+    return {
+        id: gameId,
+        version,
+        downloadType: DownloadableType.Game
+    }
+}