Fix hiding offset calc (#59)

Author: muukii

Rideau/Core/RideauHostingView.swift

@@ -425,7 +425,7 @@ final class RideauHostingView: RideauTouchThroughView {
 
     func currentHidingOffset() -> CGFloat {
 
-      let offset = actualTopMargin
+      let offset = actualTopMargin.rounded()
 
       var nextValue: CGFloat
       if let v = containerView.layer.presentation().map({ $0.frame.origin.y }) {
@@ -434,6 +434,8 @@ final class RideauHostingView: RideauTouchThroughView {
         nextValue = containerView.frame.origin.y
       }
 
+      nextValue.round()
+
       nextValue -= offset
 
       return nextValue