style: clean up code formatting and remove trailing whitespace

refactor: reorganize imports and fix type imports

app/api/items/categories/route.ts

@@ -1,4 +1,4 @@
-import { NextRequest } from "next/server";
+import type { NextRequest } from "next/server";
 import { prisma } from "@/lib/prisma/app";
 
 export async function GET(_req: NextRequest) {
@@ -15,11 +15,6 @@ export async function GET(_req: NextRequest) {
         .filter((category): category is string => Boolean(category)),
     });
   } catch (e: any) {
-    return Response.json(
-      { error: e?.message || "Erro" },
-      { status: 500 }
-    );
+    return Response.json({ error: e?.message || "Erro" }, { status: 500 });
   }
 }
-
-