TitleBar control calculation of padding is incorrect

[lhak]

Describe the bug

The titlebar control does not take the scale factor into account when calculating the widths of the columns used for padding, resulting in incorrect positioning of elements.

Steps to reproduce the bug

The code here:

microsoft-ui-xaml/src/controls/dev/TitleBar/TitleBar.cpp

Lines 400 to 411 in 689477e

	if (const auto rightColumn = m_rightPaddingColumn.get())
	{
	const auto rightColumnInset =
	FlowDirection() == winrt::FlowDirection::LeftToRight ?
	appTitleBar.RightInset() :
	appTitleBar.LeftInset();
	TITLEBAR_TRACE_VERBOSE_DBG(*this, TRACE_MSG_METH_STR_INT, METH_NAME, this,
	L"RightColumn width:",
	rightColumnInset);
	rightColumn.Width(winrt::GridLengthHelper::FromPixels(rightColumnInset));

needs to take the scale factor into account by dividing rightColumnInset (value in physical pixels) by the scale factor.

Expected behavior

No response

Screenshots

No response

NuGet package version

WinUI 3 - Windows App SDK 1.7 Preview 1: 1.7.250208002-preview1

Windows version

Windows 11 (24H2): Build 26100

Additional context

No response

[niels9001]

Wonder if this is the cause of this behavior:

[lhak]

This is still broken in 1.7 stable