Improve Google Analytics error handling for better UX

- Add onerror handler to Google Tag Manager script loading
- Provides informative console message when GA is blocked by ad blockers
- Reduces confusion about "script loading failed" errors in developer console
- Maintains full analytics functionality when scripts load successfully

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

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

Author: Rust-Trends

themes/apollo/templates/base.html

@@ -5,7 +5,7 @@
 {% include "partials/header.html" %}
 
 <!-- Google tag (gtag.js) -->
-<script async src="https://www.googletagmanager.com/gtag/js?id=G-FWPL9RWX77"></script>
+<script async src="https://www.googletagmanager.com/gtag/js?id=G-FWPL9RWX77" onerror="console.log('Google Analytics blocked by ad blocker or privacy settings')"></script>
 <script>
   window.dataLayer = window.dataLayer || [];
   function gtag(){dataLayer.push(arguments);}