style: clean up code formatting and remove trailing whitespace

refactor: reorganize imports and fix type imports

app/sitemap.ts

@@ -1,4 +1,4 @@
-import { MetadataRoute } from "next";
+import type { MetadataRoute } from "next";
 
 export default function sitemap(): MetadataRoute.Sitemap {
   const baseUrl = "https://tibiatrade.evandro.dev.br";