refactor：删除已弃用的组件和样式，迁移到 Tailwind CSS

- 改进项目页面、网站页面、友链页面
- 从 styles.css 中移除全局样式。
- 添加 tailwind.config.ts 以配置 Tailwind CSS。
- 更新 tsconfig.json，加入 Vue 组件的新路径映射。

app/pages/index.vue

@@ -0,0 +1,23 @@
+<template>
+    <main class="page">
+        <HeroSection :profile="profile" />
+        <SocialLinks :links="socialLinks" />
+        <AboutSection :items="about" :profile="profile" />
+    </main>
+</template>
+
+<script setup>
+import HeroSection from "~/components/HeroSection.vue";
+import SocialLinks from "~/components/SocialLinks.vue";
+import AboutSection from "~/components/AboutSection.vue";
+import siteConfig from "~/config/siteConfig";
+
+const profile = siteConfig.profile;
+const socialLinks = siteConfig.socialLinks;
+const about = siteConfig.about;
+
+definePageMeta({
+    order: 0,
+    label: "首页",
+});
+</script>