refactor(client): typed localStorage

packages/frontend/src/instance.ts

@@ -1,10 +1,11 @@
 import { computed, reactive } from 'vue';
 import * as Misskey from 'misskey-js';
 import { api } from './os';
+import { miLocalStorage } from './local-storage';
 
 // TODO: 他のタブと永続化されたstateを同期
 
-const instanceData = localStorage.getItem('instance');
+const instanceData = miLocalStorage.getItem('instance');
 
 // TODO: instanceをリアクティブにするかは再考の余地あり
 
@@ -21,7 +22,7 @@ export async function fetchInstance() {
 		instance[k] = v;
 	}
 
-	localStorage.setItem('instance', JSON.stringify(instance));
+	miLocalStorage.setItem('instance', JSON.stringify(instance));
 }
 
 export const emojiCategories = computed(() => {