User local fixes: simplify extension and add scroll fix

[cclambie]

Summary

This PR includes local changes made by the user to simplify the extension and fix scrolling behavior.

Changes Made

1. Simplified content.js

• Removed MutationObserver code: The extension no longer uses MutationObserver to watch for table changes, simplifying the codebase
• Cleaned up filter state management: Removed global filter state that was used for persistence
• Minor code cleanup: Removed some event propagation stops and simplified logging

2. Added fix.css

• New CSS file to address scrolling issues
• Prevents page scroll when grid reaches boundaries using overscroll-behavior: contain
• Improves grid scrolling by making the scroller a proper scroll container with overflow-y: auto
• Sets max-height to 70vh for better viewport management

3. Updated manifest.json

• Version bump: 1.0.0 → 1.0.1
• Added fix.css to the content scripts CSS array

Files Changed

• content.js - Simplified by removing MutationObserver logic
• fix.css - New file for scroll behavior fixes
• manifest.json - Version bump and CSS file addition

Testing Recommendations

• Test that filters still work correctly without MutationObserver
• Verify that scrolling behavior is improved with the new CSS
• Ensure the extension loads properly with the updated manifest