feat: initialize Vue 3 project with Tailwind CSS and Vite

- Add package.json with project metadata and dependencies
- Create favicon.ico and ritsu.png assets
- Implement main App.vue component with site structure
- Add HeroSection, RitsuSection, SiteHeader, and SupportSection components
- Set up theme toggle functionality in SiteHeader
- Create main entry point in main.ts
- Add Tailwind CSS styles in style.css
- Configure TypeScript with tsconfig files
- Set up Vite configuration for Vue and Tailwind CSS

tsconfig.json

@@ -0,0 +1,7 @@
+{
+  "files": [],
+  "references": [
+    { "path": "./tsconfig.app.json" },
+    { "path": "./tsconfig.node.json" }
+  ]
+}