refactor: update class names for consistency and improve styling

- Changed `flex-shrink-0` to `shrink-0` in multiple components for better consistency.
- Updated button and checkbox classes to use `rounded-sm` for a more uniform appearance.
- Adjusted backdrop blur classes for modals to `backdrop-blur-xs` for a subtler effect.
- Removed unused Tailwind CSS configuration file.

src/components/AnalyticsList.jsx

@@ -152,7 +152,7 @@ export default function AnalyticsList({ analytics, onRefresh, isOwner = true })
                 </div>
               </div>
 
-              <div className="flex items-center gap-1 flex-shrink-0">
+              <div className="flex items-center gap-1 shrink-0">
                 <div className="relative">
                   <button
                     onClick={() => toggleExportMenu(entry.id)}