[Bug] BadgeView should be round

[developer9969]

Description

Trying to use the badge view but noticed that the badgeview is not round but stretches vertically.
Also I think the badge positions should be more internal, it looks too detached.

<StackLayout Orientation="Vertical">
        <xct:BadgeView
            BackgroundColor="Gainsboro"
            FontAttributes="Bold"
            FontSize="Medium"
            BorderColor="Blue" 
            BadgePosition="BottomRight"
            TextColor="White"
            Margin="0,20,0,0"
            Text="1">
            <Button HeightRequest="60" 
                    WidthRequest="60"
                    CornerRadius="30" 
                    Margin="0,30,0,0"
                    BackgroundColor="Red" 
                    HorizontalOptions="Center"
                    VerticalOptions="Center">
            </Button>
        </xct:BadgeView>
    </StackLayout>

[Cfun1]

Could be related with #641