Added ability to cancel a game to the GamePage UI

Author: szv

src/Codebreaker.WinUI/Views/Pages/GamePage.xaml

@@ -89,8 +89,6 @@
             x:Name="PegSelectionArea"
             Orientation="Horizontal"
             Grid.Row="1">
-            <!--
-            Cancelling the game is not yet implemented in the VM
             <Button
                 Height="92" Margin="0,-6,4,0" Width="100"
                 ca:Confirm.Enabled="True"
@@ -104,11 +102,11 @@
                     <ProgressRing Visibility="{x:Bind ViewModel.CancelGameCommand.IsRunning, Mode=OneWay}" />
                     <TextBlock Text="{cme:ResourceString Name=GamePage_CancelButtonText}" />
                 </StackPanel>
-            </Button>-->
-                <components:PegSelectionComponent 
-                    Grid.Row="3"
-                    Margin="65,0,0,0"
-                    ViewModel="{x:Bind ViewModel, Mode=OneWay}" />
+            </Button>
+            <components:PegSelectionComponent 
+                Grid.Row="3"
+                Margin="65,0,0,0"
+                ViewModel="{x:Bind ViewModel, Mode=OneWay}" />
         </StackPanel>
         <!--Move section-->
         <ScrollViewer Grid.Row="2" Padding="0,0,0,15" x:Name="PegScrollViewer">