PaneFooter items clip when NavigationView is collapsed

[vberkaltun]

Describe the bug

When the navigation pane is collapsed, the icons of NavigationViewItem elements placed inside NavigationView.PaneFooter get clipped. This issue is also observed in the WinUI 3 Gallery app.

Steps to reproduce the bug

1. Open the WinUI 3 Gallery app and navigate to the NavigationView sample.
2. Scroll down to the "API in action" example.
3. Enable "PaneFooter visible".
4. Collapse/close the navigation pane.

Expected behavior

When the navigation pane is collapsed, the PaneFooter items should be fully visible without clipping, just like the other navigation items.

Screenshots

NuGet package version

WinUI 3 - Windows App SDK 1.6.5: 1.6.250205002

Windows version

Windows 11 (24H2): Build 26100

Additional context

No response

[aicd0]

Also affects PaneCustomContent

[vberkaltun]

I found a workaround by setting CompactPaneLength to 52px. The default is 48px, so adding 4px feels like a small price to pay.

Also tested it at 100% and 125% scaling, and it looks fine so far.