feat(samples/slay-the-spire-like): add ContentModule type definition

src/samples/slay-the-spire-like/data/index.ts

@@ -1,5 +1,6 @@
-import * as desert from './desert';
+import * as desert from "./desert";
+export type { ContentModule } from "./types";
 
 export default {
-    desert
-}
+  desert,
+};