feat: add website components and pages for LexAI

- Implemented SiteHeader and SiteFooter components for consistent navigation and footer across the website.
- Created CommunityPage and ContributePage to provide information on community involvement and contribution guidelines.
- Developed DocsPage to serve as the main documentation hub, detailing features and installation instructions.
- Added HomePage to introduce LexAI and its functionalities, highlighting key features and privacy aspects.
- Established links.ts for centralized management of external links used throughout the website.
- Configured main.tsx for application entry point with React Router for navigation.
- Introduced styles.css for consistent styling across the website.
- Set up TypeScript configuration files for improved type checking and development experience.
- Configured Vite for building and serving the website.

packages/vscode/README.md

@@ -78,7 +78,7 @@ Change in Settings or via option chips in the suggestion zone.
 
 ## Quick start
 
-1. Install this extension (Marketplace, Open VSX, or **Install from VSIX**).
+1. Install from the [VS Code Marketplace](https://marketplace.visualstudio.com/items?itemName=JuanKibin.lexai-vscode), or **Install from VSIX**.
 2. Command Palette → **LexAI: Open Settings** → provider, model, API key.
 3. Select text or code → click **LexAI** on the line → pick an action or **Code Assist**.
 4. Review in the suggestion zone → Accept to replace the selection (or Copy from the sidebar / panel).
@@ -99,6 +99,7 @@ Install / publish details: [DEPLOY.md](./DEPLOY.md).
 
 | | |
 | --- | --- |
+| **This extension** | [VS Code Marketplace](https://marketplace.visualstudio.com/items?itemName=JuanKibin.lexai-vscode) (`JuanKibin.lexai-vscode`) |
 | **Chrome extension** | [Chrome Web Store](https://chromewebstore.google.com/detail/bagpcheidbkfgijnnmolnkgagibbjfnk) |
 | **Source** | [LexAI repository](https://git.juankibin.space/kibin/LexAI) |
 | **Publisher** | JuanKibin |