Add initial project setup with static files and configuration

- Create robots.txt to allow all user agents and specify sitemap location
- Add site.webmanifest for PWA support with app details
- Initialize sitemap.xml with the homepage URL and metadata
- Set up svelte.config.js for SvelteKit with static adapter and prerendering
- Configure TypeScript with tsconfig.json for strict type checking and module resolution
- Establish Vite configuration in vite.config.ts for SvelteKit integration

vite.config.ts

@@ -0,0 +1,6 @@
+import { sveltekit } from '@sveltejs/kit/vite';
+import { defineConfig } from 'vite';
+
+export default defineConfig({
+  plugins: [sveltekit()]
+});