chore: upgrade tooling stack

- TypeScript 3.9 -> 5.8
- ESLint 6 -> 9 (flat config)
- Prettier 1 -> 3
- eslint-plugin-vue 6 -> 9
- Add vue-tsc for type checking
- Migrate Sass @import to @use syntax
- Fix Pinia persistence config for v4
- Add Spotify type declarations
- Remove unused registerServiceWorker.ts

src/utils/notification.ts

@@ -21,7 +21,7 @@ export const notify: ShowNotification = async (title, options?) => {
       renotify: true,
       silent: true,
       ...options
-    })
+    } as NotificationOptions)
   }
 
   try {