Fixing SymbolDisplay appearing like dots on certain Android devices (#…

…603)

* Switch cancelButton image to FontImageSource allowing for more flexible and scalable icon usage (#593)

* Switch cancelButton image to FontImageSource allowing for more flexible and scalable icon usage with support for Dark/Light mode fixes.

* Update cancelButton icon color to #6E6E6E
Removed unused resources.

* Add platform-specific min size for SymbolDisplay on Android to fix issue with Pixel 4 rendering.

* Reverting changing height and width and removing Border to resolve the issue

src/Samples/Toolkit.SampleApp.Maui/Samples/SymbolEditorSample.xaml

@@ -22,11 +22,7 @@
 
             </StackLayout>
 
-            <Border Stroke="LightGray" Grid.Row="1" Margin="0" HorizontalOptions="Center" VerticalOptions="Center" Padding="0" >
-                <esri:SymbolDisplay x:Name="symbolDisplay" Symbol="{Binding Symbol}" />
-
-            </Border>
-
+            <esri:SymbolDisplay x:Name="symbolDisplay" Grid.Row="1" Symbol="{Binding Symbol}" />
         </Grid>
     </ContentPage.Content>
 </ContentPage>