improved performance and battery usage on older devices

lib/view/pages/files/data/sort_options.dart

@@ -21,7 +21,7 @@ class SortOptions {
     SortOption.name: BetterSortOption(
       displayName: 'Name',
       icon: Icons.sort_by_alpha_outlined,
-      compare: (a, b) => a.name.toLowerCase().compareTo(b.name.toLowerCase()),
+      compare: (a, b) => a.lowerName.compareTo(b.lowerName),
     ),
     SortOption.date: BetterSortOption(
       displayName: 'Datum',