Fix For Maui Navigation cast Type A to Type B

[ChrisPulman]

What kind of change does this PR introduce?

Fix for #3563

What is the current behaviour?

After clearing the Navigation stack, when Navigating using PopToRoot or NavigateBack an exception occurs in InvalidateCurrentViewModel trying to cast Type A to Type B

What is the new behaviour?

Handlers are added to synchronise the navigation stacks and ignore incompatible viewmodels

What might this PR break?

None expected as this issue must have been an underlying issue and would have crashed the end application

Please check if the PR fulfils these requirements

• Tests for the changes have been added (for bug fixes / features)
• Docs have been added / updated (for bug fixes / features)

Other information:

[codecov]

Codecov Report

Patch coverage has no change and project coverage change: -0.08 ⚠️

Comparison is base (6d309b2) 64.07% compared to head (cc6d269) 64.00%.

❗ Current head cc6d269 differs from pull request most recent head 01023f6. Consider uploading reports for the commit 01023f6 to get more accurate results

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3581      +/-   ##
==========================================
- Coverage   64.07%   64.00%   -0.08%     
==========================================
  Files         157      157              
  Lines        5762     5750      -12     
==========================================
- Hits         3692     3680      -12     
  Misses       2070     2070              

Impacted Files	Coverage Δ
...activeUI.Wpf/Common/AutoDataTemplateBindingHook.cs	92.85% <ø> (ø)
...eUI.Wpf/Common/BooleanToVisibilityTypeConverter.cs	70.58% <ø> (ø)
src/ReactiveUI.Wpf/Common/PlatformOperations.cs	0.00% <ø> (ø)
src/ReactiveUI.Wpf/Common/ReactivePage.cs	0.00% <ø> (ø)
src/ReactiveUI.Wpf/Common/ReactiveUserControl.cs	90.90% <ø> (ø)
src/ReactiveUI.Wpf/Common/RoutedViewHost.cs	86.53% <ø> (ø)
src/ReactiveUI.Wpf/Common/ViewModelViewHost.cs	84.48% <ø> (ø)
.../ReactiveUI.Wpf/Rx/Concurrency/ControlScheduler.cs	0.00% <ø> (ø)
...activeUI.Wpf/Rx/Concurrency/DispatcherScheduler.cs	0.00% <ø> (ø)
src/ReactiveUI.Wpf/Rx/Linq/ControlObservable.cs	0.00% <ø> (ø)
... and 1 more

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[github-actions]

This pull request has been automatically locked since there has not been any recent activity after it was closed. Please open a new issue for related bugs.