About tab - Made version selectable

src/Artemis.UI.Shared/Styles/TextBlock.axaml

@@ -81,4 +81,8 @@
     <Style Selector="Run.subtitle">
         <Setter Property="Foreground" Value="{DynamicResource TextFillColorTertiaryBrush}" />
     </Style>
+    
+    <Style Selector="SelectableTextBlock">
+        <Setter Property="SelectionBrush" Value="{DynamicResource TextControlSelectionHighlightColor}" />
+    </Style>
 </Styles>

src/Artemis.UI/Screens/Settings/Tabs/AboutTabView.axaml

@@ -35,7 +35,7 @@
                     </controls:HyperlinkButton>
                 </StackPanel>
 
-                <TextBlock Grid.Row="1"
+                <SelectableTextBlock Grid.Row="1"
                                      Grid.Column="1"
                                      VerticalAlignment="Top"
                                      Classes="subtitle"