async Task MoveTabMarkerToRight()
{
var tapSelectedEndPos = HeaderLeftButton.Width / 2 + MenuButton.Width + HeaderRightButton.Width / 2;
await ButtonSelectedMarker.TranslateTo(tapSelectedEndPos, 0, tapMarkerSpeed);
headerButtonSelectedPosition = 1;
}
async Task MoveTabMarkerToLeft()
{
await ButtonSelectedMarker.TranslateTo(0, 0, tapMarkerSpeed);
headerButtonSelectedPosition = 0;
}
