Avalonia 12 new control support

[SKProCH]

Continue the #501

Here is the list of controls that require new styles:

• CarouselPage
• PipsPager
• CommandBar
• ContentPage
• DrawerPage
• NavigationPage
• TabbedPage
• WindowDrawnDecorations
• GroupBox

PRs are appreciated

[SKProCH]

Probably next goal should be add this controls to the demo.

[DirkKramer]

@SKProCH I can do that, i will also try starting to work on the other open controls on the list if I have time. (and if they are not to complex).

[DirkKramer]

Is it possible to push the nuget version though? because the Android textbox crash and the broken Windowdecorations are limiting some apps from working correctly now.

[SKProCH]

There is already should be a nightly version (it automatically pushed every commit to master). But yeah, I'll publish a proper release in a meantime.

UPD. Should be as v3.16.0 soon.

[ruilvo]

Is this why I can't start an app with the sidebar closed by default?

    <controls:NavigationDrawer Name="NavDrawer" LeftDrawerOpened="{Binding
    ElementName=NavDrawerSwitch, Path=IsChecked, Mode=TwoWay}">
        <controls:NavigationDrawer.LeftDrawerContent>
            <TextBlock Text="Nav. here."/>
        </controls:NavigationDrawer.LeftDrawerContent>
        <Grid RowDefinitions="Auto, *">
            <StackPanel Grid.Row="0" Spacing="4" Orientation="Horizontal">
                <ToggleButton Name="NavDrawerSwitch"
                              IsChecked="False"

[DirkKramer]

Is this why I can't start an app with the sidebar closed by default?

    <controls:NavigationDrawer Name="NavDrawer" LeftDrawerOpened="{Binding
    ElementName=NavDrawerSwitch, Path=IsChecked, Mode=TwoWay}">
        <controls:NavigationDrawer.LeftDrawerContent>
            <TextBlock Text="Nav. here."/>
        </controls:NavigationDrawer.LeftDrawerContent>
        <Grid RowDefinitions="Auto, *">
            <StackPanel Grid.Row="0" Spacing="4" Orientation="Horizontal">
                <ToggleButton Name="NavDrawerSwitch"
                              IsChecked="False"

Most probably due to my changes in the split view to support the Avalonia DrawerPage. Will look into this tommorow