feat: initialize frontend with React and Vite setup

- Add main application structure with App component
- Implement state management for counter functionality
- Create CSS styles for application layout and components
- Include assets for logos and hero image
- Set up Vite configuration for development environment
- Establish global CSS variables for theming

frontend/vite.config.js

@@ -0,0 +1,7 @@
+import { defineConfig } from 'vite'
+import react from '@vitejs/plugin-react'
+
+// https://vite.dev/config/
+export default defineConfig({
+  plugins: [react()],
+})