fix: Resolve URL routing issues and add favicon

- Fixed URL name from 'about_view' to 'about' to match template usage
- Added inline SVG favicon to avoid 404 errors
- All pages now load without NoReverseMatch errors
- Modern design is fully functional

smartsoltech/web/templates/web/base_modern.html

@@ -29,7 +29,7 @@
     <link rel="manifest" href="/static/manifest.json">
     
     <!-- Favicon -->
-    <link rel="icon" type="image/x-icon" href="{% static 'assets/img/favicon.ico' %}">
+    <link rel="icon" type="image/svg+xml" href="data:image/svg+xml,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 100 100'><rect width='100' height='100' fill='%236366f1'/><text y='70' font-size='60' fill='white' font-family='Arial,sans-serif' text-anchor='middle' x='50'>S</text></svg>">>
     
     <title>{% block title %}SmartSolTech - Современные IT-решения{% endblock %}</title>