[Fix] Wrong Scroll Tolerance

Runtime/cupertino/localization.cs

         public override string datePickerMediumDate(DateTime date) {
             var day = _shortWeekdays[((int) date.DayOfWeek + 6) % 7];
             var month = _shortMonths[date.Month - 1];
-            return $"{day}, {month} {date.Day.ToString().PadRight(2)} ";
+            return $"{day} {month} {date.Day.ToString().PadRight(2)} ";
         }
 
         public override DatePickerDateOrder datePickerDateOrder {

Runtime/widgets/scroll_physics.cs

             }
         }
 
-        // todo: Handle the case of the device pixel ratio changing. use 1 as devicePixelRatio for now.
-            velocity: 1.0f / (0.050f * 1),
-            distance: 1.0f / 1
+            velocity: 1.0f / (0.050f * Window.instance.devicePixelRatio),
+            distance: 1.0f / Window.instance.devicePixelRatio
         );
 
         public virtual Tolerance tolerance {