Fix CSP violations and revert to stable CSS version

- Add region1.google-analytics.com to CSP headers in index.php and blog articles
- Fix manifest.json icon purpose warning by changing to "any"
- Add mobile-web-app-capable meta tag for mobile compatibility
- Revert CSS files to stable version from commit 5558f53 to resolve hero section animation issues
- Remove spam protection code that was causing layout problems

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

email-config.php

@@ -0,0 +1,19 @@
+<?php
+// Email configuration
+// For production, use environment variables or a secure config file
+
+// SMTP Configuration
+define('SMTP_HOST', 'smtp.gmail.com'); // Your SMTP server
+define('SMTP_PORT', 587); // SMTP port (587 for TLS, 465 for SSL)
+define('SMTP_USERNAME', 'info@ukdataservices.co.uk'); // Your email
+define('SMTP_PASSWORD', 'YOUR_APP_PASSWORD_HERE'); // Your app password
+define('SMTP_ENCRYPTION', 'tls'); // 'tls' or 'ssl'
+
+// Email Settings
+define('EMAIL_FROM', 'info@ukdataservices.co.uk');
+define('EMAIL_FROM_NAME', 'UK Data Services');
+define('EMAIL_TO', 'info@ukdataservices.co.uk');
+
+// Fallback to PHP mail() if SMTP fails
+define('USE_SMTP', false); // Set to true when SMTP is configured
+?>