chore: Try out CupertinoPage instead of custom transition in router

lib/config/routes.dart

@@ -381,16 +381,12 @@ abstract class AppRoutes {
   ];
 
   static Page defaultPageBuilder(BuildContext context, Widget child) =>
-      CustomTransitionPage(
-        child: child,
-        transitionsBuilder: (context, animation, secondaryAnimation, child) =>
       FluffyThemes.isColumnMode(context)
-                ? FadeTransition(opacity: animation, child: child)
-                : CupertinoPageTransition(
-                    primaryRouteAnimation: animation,
-                    secondaryRouteAnimation: secondaryAnimation,
-                    linearTransition: false,
+          ? CustomTransitionPage(
               child: child,
-                  ),
-      );
+              transitionsBuilder:
+                  (context, animation, secondaryAnimation, child) =>
+                      FadeTransition(opacity: animation, child: child),
+            )
+          : CupertinoPage(child: child);
 }