Update environment configuration, Docker setup, and frontend/backend dependencies

- Updated .env.example and .env files for backend and frontend with placeholder values.
- Enhanced .gitignore to include additional files and directories.
- Modified docker-compose.yml to change image names and improve service health checks.
- Updated README.md and SETUP_THE_PROJECT.md for clearer setup instructions.
- Added database initialization scripts and SQL files for structured database setup.
- Updated frontend Dockerfile to use Node.js 22 and adjusted package.json scripts.
- Improved error handling and logging in start scripts for better debugging.
- Added reCAPTCHA support in the signup page with conditional loading based on environment variables.

worklenz-frontend/src/components/EmptyListPlaceholder.tsx

@@ -8,7 +8,7 @@ type EmptyListPlaceholderProps = {
 };
 
 const EmptyListPlaceholder = ({
-  imageSrc = 'https://app.worklenz.com/assets/images/empty-box.webp',
+  imageSrc = '/assets/images/empty-box.webp',
   imageHeight = 60,
   text,
 }: EmptyListPlaceholderProps) => {