feat: 更新 VitePress 配置，添加文档基础路径、图标和最后更新时间，增强主题样式

docs/.vitepress/config.mts

@@ -4,6 +4,11 @@ import { defineConfig } from 'vitepress'
 export default defineConfig({
   title: "Bash",
   description: "My Bash!",
+  base: '/docs/',
+  head: [
+    ['link', { rel: 'icon', type: 'image/svg+xml', href: 'favicon.ico' }]
+  ],
+  lastUpdated: true,
   themeConfig: {
     // https://vitepress.dev/reference/default-theme-config
     nav: [
@@ -20,9 +25,5 @@ export default defineConfig({
         ]
       }
     ],
-
-    socialLinks: [
-      { icon: 'github', link: 'https://github.com/vuejs/vitepress' }
-    ]
   }
 })