examples: replace Editor control with Entry in the Relay Console sample

There seems to be a bug in the Xamarin Forms Editor control when running
in iOS 13.

Signed-off-by: Ruben Moral <ruben.moral@digi.com>

Author: rubenmoral

examples/xamarin/RelayConsoleSample/RelayConsoleSample/Pages/SendRelayMessagePage.xaml

@@ -11,7 +11,7 @@
                     <Label Text="Destination interface:" />
                     <Picker x:Name="interfacePicker" />
                     <Label Text="Data:" />
-                    <Editor x:Name="dataEditor" Margin="0,0,0,10" />
+                    <Entry x:Name="dataEntry" Margin="0,0,0,10" />
                 </StackLayout>
                 <BoxView HeightRequest="1" HorizontalOptions="FillAndExpand" BackgroundColor="DarkGray"/>
                 <StackLayout Orientation="Horizontal" HorizontalOptions="FillAndExpand">

examples/xamarin/RelayConsoleSample/RelayConsoleSample/Pages/SendRelayMessagePage.xaml.cs

@@ -52,7 +52,7 @@ public SendRelayMessagePage(BleDevice bleDevice)
 		public void OnSendButtonClicked(object sender, ClickedEventArgs e)
 		{
 			DestinationInterface = (XBeeLocalInterface) interfacePicker.SelectedItem;
-			Data = dataEditor.Text;
+			Data = dataEntry.Text;
 
 			ClosePopup();
 		}