fix: disable animation on Reset button in game picker

Wrap selectedIds.removeAll() in withTransaction with disablesAnimations
to prevent animation glitches when clearing all selections at once.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

SportsTime/Features/Trip/Views/TripCreationView.swift

@@ -1056,7 +1056,11 @@ struct GamePickerSheet: View {
                 ToolbarItem(placement: .cancellationAction) {
                     if !selectedIds.isEmpty {
                         Button("Reset") {
-                            selectedIds.removeAll()
+                            var transaction = Transaction()
+                            transaction.disablesAnimations = true
+                            withTransaction(transaction) {
+                                selectedIds.removeAll()
+                            }
                         }
                         .foregroundStyle(.red)
                     }