fix: 补全SEO

- 关于我们页面的SEO信息补全

app/pages/about/index.vue

@@ -41,6 +41,11 @@
       console.error('数据获取失败: ', value);
     }
   });
+
+  const pageTitle = computed(() => $t('page-title.about-us'));
+  useHead({
+    title: pageTitle,
+  });
 </script>
 
 <style scoped>