Add refresh button to refresh webview on CaptchaPage

KeyDown and KeyUp events don't work with webviews.

Author: golf1052

Signal-Windows/Views/CaptchaPage.xaml

@@ -10,5 +10,11 @@
 
     <Grid>
         <WebView x:Name="webView" Source="{x:Bind Vm.WebViewSource, Mode=TwoWay}"/>
+        <Button x:Name="refreshButton" VerticalAlignment="Bottom" HorizontalAlignment="Center" Click="refreshButton_Click">
+            <StackPanel Orientation="Horizontal">
+                <SymbolIcon Symbol="Refresh"/>
+                <TextBlock Text="Refresh" Margin="8,0,0,0"/>
+            </StackPanel>
+        </Button>
     </Grid>
 </Page>

Signal-Windows/Views/CaptchaPage.xaml.cs

@@ -33,25 +33,8 @@ public CaptchaPageViewModel Vm
 
         public CaptchaPage()
         {
-            // pretty much the only reason 
             this.InitializeComponent();
             Vm.View = this;
-            KeyDown += CaptchaPage_KeyDown;
-        }
-
-        private bool IsCtrlKeyPressed()
-        {
-            var ctrlState = CoreWindow.GetForCurrentThread().GetKeyState(Windows.System.VirtualKey.Control);
-            return (ctrlState & CoreVirtualKeyStates.Down) == CoreVirtualKeyStates.Down;
-        }
-
-        private void CaptchaPage_KeyDown(object sender, KeyRoutedEventArgs e)
-        {
-            if ((IsCtrlKeyPressed() && e.Key == Windows.System.VirtualKey.R) ||
-                e.Key == Windows.System.VirtualKey.F5)
-            {
-                webView.Refresh();
-            }
         }
 
         protected override void OnNavigatedTo(NavigationEventArgs e)
@@ -65,5 +48,11 @@ protected override void OnNavigatingFrom(NavigatingCancelEventArgs e)
             base.OnNavigatingFrom(e);
             Vm.OnNavigatingFrom();
         }
+
+        private void refreshButton_Click(object sender, RoutedEventArgs e)
+        {
+            // KeyDown event doesn't work with WebView so just use a button to allow users to refresh the page
+            webView.Refresh();
+        }
     }
 }