Fix assets URL

Author: YoYo178

frontend/src/utils/note.utils.ts

@@ -1,6 +1,9 @@
 import { BACKEND_URL } from "../config/backendConfig";
 
+const isProduction = import.meta.env.PROD;
+const ASSETS_PATH = isProduction ? 'notes-app/assets' : 'assets';
+
 export function getFileURL(userId: string, fileType: 'audio' | 'image', fileName: string) {
-    const url = new URL(`assets/${fileType === 'image' ? 'images' : 'audio'}/${userId}/${fileName}`, BACKEND_URL)
+    const url = new URL(`${ASSETS_PATH}/${fileType === 'image' ? 'images' : 'audio'}/${userId}/${fileName}`, BACKEND_URL)
     return url.toString();
 }