Remove refresh icon and fix Safari/WebKit runtime errors

- Removed manual refresh button from frontend (kept auto-refresh functionality)
- Fixed WebKit 'object cannot be found' error by replacing absolute positioning with flexbox
- Added lazy loading to images to prevent preload warnings
- Cleaned up unused imports and variables:
  - Removed unused useRef import
  - Removed unused colors state variable and colorService
  - Removed unused ColorSwatch import from FilamentTableV2
  - Removed unused getModifierIcon function from MaterialBadge
- Updated tests to match current implementation
- Improved layout stability for better cross-browser compatibility
- Removed temporary migration scripts

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

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

src/components/MaterialBadge.tsx

@@ -22,23 +22,6 @@ export const MaterialBadge: React.FC<MaterialBadgeProps> = ({ base, modifier, cl
     }
   };
 
-  const getModifierIcon = () => {
-    switch (modifier) {
-      case 'Silk':
-        return 'S';
-      case 'Matte':
-        return 'M';
-      case 'Glow':
-        return 'G';
-      case 'Wood':
-        return 'W';
-      case 'CF':
-        return 'CF';
-      default:
-        return null;
-    }
-  };
-
   return (
     <div className={`inline-flex items-center gap-2 ${className}`}>
       <span className={`inline-flex items-center px-2.5 py-0.5 rounded-full text-xs font-medium ${getBaseColor()}`}>