Fix a few more things, oops

Author: bbrk24

Sources/UIKitBackend/UIKitBackend+Container.swift

@@ -112,8 +112,8 @@ extension UIKitBackend {
     public func naturalSize(of widget: Widget) -> SIMD2<Int> {
         let size = widget.intrinsicContentSize
         return SIMD2(
-            Int(size.width),
-            Int(size.height)
+            Int(size.width.rounded(.awayFromZero)),
+            Int(size.height.rounded(.awayFromZero))
         )
     }
 

Sources/UIKitBackend/UIKitBackend+Control.swift

@@ -254,7 +254,7 @@ extension UIKitBackend {
         return textFieldWidget.child.text ?? ""
     }
 
-    #if os(iOS)
+    #if os(iOS) && !targetEnvironment(macCatalyst)
         public func createPicker() -> Widget {
             PickerWidget()
         }
@@ -303,7 +303,7 @@ extension UIKitBackend {
         wrapper.onClick = handleClick
     }
 
-    #if os(iOS) || targetEnvironment(macCatalyst)
+    #if os(iOS)
         public func createSlider() -> Widget {
             SliderWidget()
         }

Sources/UIKitBackend/UIKitBackend+Passive.swift

@@ -36,7 +36,9 @@ extension UIKitBackend {
     }
 
     public func createTextView() -> Widget {
-        WrapperWidget<UILabel>()
+        let widget = WrapperWidget<UILabel>()
+        widget.child.numberOfLines = 0
+        return widget
     }
 
     public func updateTextView(