web-class-frontend/app/app.vue

<template>
  <NuxtLayout>
    <NuxtPage />
  </NuxtLayout>
</template>

<script setup lang="ts">
  const colorMode = useColorMode();
  useHead({
    title: `Lichx's WebClass`,
  });
  onMounted(() => {
    watchEffect(() => {
      if (colorMode.value === 'dark') {
        document.documentElement.setAttribute('theme-mode', 'dark');
      } else {
        document.documentElement.removeAttribute('theme-mode');
      }
    });
  });
</script>