pack: rename vitepress config file extensions and add ts ignore

docs/.vitepress/config.mts

@@ -0,0 +1,17 @@
+// @ts-ignore
+import { generateSidebar } from 'vitepress-sidebar'
+
+export default {
+  title: 'Vutron',
+  description: 'Quick Start Templates for Vite + Vue 3 + Electron',
+  themeConfig: {
+    sidebar: generateSidebar({
+      root: 'docs',
+      collapsible: false,
+      collapsed: false,
+      useTitleFromFileHeading: true,
+      sortByFileName: ['getting-started.md', 'build-configuration.md', 'npm-scripts.md']
+    }),
+    socialLinks: [{ icon: 'github', link: 'https://github.com/jooy2/vutron' }]
+  }
+}