feat: show custom cookbook

pages/settings.vue

@@ -1,7 +1,28 @@
+<script lang="ts" setup>
+const app = useAppStore()
+
+definePageMeta({
+  layout: 'child',
+})
+</script>
+
 <template>
   <div>
-    <button>
+    <CommonHeader>
       设置
-    </button>
+    </CommonHeader>
+
+    <div
+      class="mx-auto max-w-md w-full"
+      px-2
+      text-left
+    >
+      <YlfForm>
+        <YlfFormItem label="离开网页后保留选中数据">
+          <YlfSwitch v-model="app.settings.keepLocalData" />
+        </YlfFormItem>
+        <YlfFormItem label="更多设置，敬请期待" />
+      </YlfForm>
+    </div>
   </div>
 </template>