fix: sirsi pravy panel, tlacidlo Nahrat sa neoreze

- pravy panel 440 px (predtym 384 px)
- pole s adresou obrazka sa vie zuzit, aby nevytlacalo tlacidlo Nahrat

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

src/components/editor/ImageUploadInput.tsx

@@ -83,7 +83,7 @@ export const ImageUploadInput: React.FC<ImageUploadInputProps> = ({
           value={value || ''}
           onChange={(e) => onChange(e.target.value)}
           placeholder={placeholder}
-          className="flex-1 text-xs font-mono border border-gray-300 rounded-lg p-2 bg-white"
+          className="flex-1 min-w-0 text-xs font-mono border border-gray-300 rounded-lg p-2 bg-white"
         />
 
         {/* Tlačidlo nahrávania */}