Add Crawl4AI Assistant Chrome Extension

- Created manifest.json for the Crawl4AI Assistant extension.
- Added popup HTML, CSS, and JS files for the extension interface.
- Included icons and favicon for the extension.
- Implemented functionality for schema capture and code generation.
- Updated index.md to reflect the availability of the new extension.
- Enhanced LLM Context Builder layout and styles for consistency.
- Adjusted global styles for better branding and responsiveness.

.claude/settings.local.json

@@ -4,7 +4,11 @@
       "Bash(cd:*)",
       "Bash(python3:*)",
       "Bash(python:*)",
-      "Bash(grep:*)"
+      "Bash(grep:*)",
+      "Bash(mkdir:*)",
+      "Bash(cp:*)",
+      "Bash(rm:*)",
+      "Bash(true)"
     ]
   },
   "enableAllProjectMcpServers": false