`ItemsStackPanel` does not stretch its children properly
Current behavior
In WCT on WASM, the navigation items are top aligned:

Expected behavior
They are centered as UWP, iOS and Android:

How to reproduce it (as minimally and precisely as possible)
Undo the commit https://github.com/unoplatform/Uno.WindowsCommunityToolkit/commit/84db026ae6f545a786abdc528ba3e87cc583527c
Environment
Nuget Package: Uno.UI Package Version(s): 2.0 Affected platform(s):
- [ ] iOS
- [ ] Android
- [x] WebAssembly
- [ ] WebAssembly renderers for Xamarin.Forms
- [ ] Windows
- [ ] Build tasks
- [ ] Solution Templates
Visual Studio: irrelevant Relevant plugins: none
Workaround
If your list is small, you can replace the ItemsStackPanel by a StackPanel (which disable the UI virtualization).
This could be already fixed as layouting on Wasm has changed a lot with time (the issue is dating 5 years back)
@MartinZikmund, @Youssef1313 I wasn't able to test this out yet as MUX seems to require me to signin, but I don't have a valid account to do so: