refactor: move fetchEpisodes in to subfolder

src/index.ts

@@ -15,7 +15,7 @@ app.route(
 );
 app.route(
   "/episodes",
-  await import("~/controllers/episodes").then(
+  await import("~/controllers/episodes/getByAniListId").then(
     (controller) => controller.default,
   ),
 );