fix(utils): 修复increaseFontScale未保存字体缩放比例的问题

增加uni.setStorageSync调用以持久化存储字体缩放比例

libs/utils/index.js

@@ -188,4 +188,5 @@ export function validates(validators, toastConfig = { icon: "none", returnBoolea
 export function increaseFontScale(incScale = 0.1) {
   const store = useStore();
   store.fontScale += incScale;
+  uni.setStorageSync(store.fontScale);
 }