feat: add contact page with form handling and validation

- Implemented a contact page with a form for user inquiries.
- Added validation for form fields using Zod schema.
- Integrated PostgreSQL database for storing contact messages.
- Created necessary API endpoints for form submission.
- Added admin authentication and session management.
- Developed CGU, cookies policy, privacy policy, and legal mentions pages.
- Set up Docker configuration for PostgreSQL and application services.
- Enhanced UI with responsive design and accessibility features.

.gitignore

@@ -36,6 +36,9 @@ yarn-error.log*
 # vercel
 .vercel
 
+# editor local settings
+.vscode/
+
 # typescript
 *.tsbuildinfo
 next-env.d.ts