[MAUI] Double border on hidden underlined tabs for Segemented TabHostView

[mkshiblu]

Platform:

• OS: [Android]
• Device: [AndroidEmulator]
• Sdk version: [Android SDK 29]
• MAUI: [.net70-android]

Describe the bug

If an underlined tab is hidden via its IsVisible="False", its side tabs border is merged and shown as double bordered for segmented tabhostview

To Reproduce

<ContentPage.Resources>
    <Style TargetType="tabs:UnderlinedTabItem">
        <Setter Property="UnselectedLabelColor"
                Value="#333333" />
        <Setter Property="HorizontalOptions"
                Value="FillAndExpand" />
        <Setter Property="WidthRequest"
                Value="100" />
        <Setter Property="Padding"
                Value="4" />
    </Style>
</ContentPage.Resources>
<tabs:TabHostView x:Name="tabHost"
                  ShowScrollbar="False"
                  TabType="Scrollable"
                  IsSegmented="True"
                  CornerRadius="0"
                  HorizontalOptions="FillAndExpand"
                  HeightRequest="60"

                  SegmentedHasSeparator="True"
                  SegmentedOutlineColor="Red">

    <tabs:UnderlinedTabItem Label="All" />
    <tabs:UnderlinedTabItem Label="Canada" />
    <tabs:UnderlinedTabItem Label="America" IsVisible="False"/>
    <tabs:UnderlinedTabItem Label="Brazil" />
    <tabs:UnderlinedTabItem Label="France" />
</tabs:TabHostView>

Screenshots (if applicable)

[mkshiblu]

@roubachof Any update on this?

[roubachof]

any pr is welcome: it's a very straightforward fix.