Microsoft-ui-xaml: Clicking several NavigationViewItems very quickly messes the layout.

[ejserna]

Describe the bug
If you click several navigation view items within less than a second, the NavigationView shows the previously selected one as selected, and this stays as such until you close the app.

Steps to reproduce the bug

1. Click one navigation view item
2. Click another one very quickly

Repeat 1-2 by clicking different items very quickly.

Expected behavior
It shouldn't show that several items are selected (i.e. show just one)

Screenshots

Version Info

NuGet package version:

| Windows 10 version | Saw the problem? |
| :--------------------------------- | :-------------------- |
| Insider Build (xxxxx) | Yes |
| May 2020 Update (19041) | |
| November 2019 Update (18363) | |
| May 2019 Update (18362) | |
| October 2018 Update (17763) | |
| April 2018 Update (17134) | |
| Fall Creators Update (16299) | |
| Creators Update (15063) | |

| Device form factor | Saw the problem? |
| :----------------- | :--------------- |
| Desktop |Yes|
| Xbox | |
| Surface Hub | |
| IoT | |

Additional context

[kmgallahan]

Fairly sure this bug is related to click-drag rather than speed of clicks. #2860

It is resolved via https://github.com/microsoft/microsoft-ui-xaml/pull/2625

That patch is available in the latest pre-release build.

[ranjeshj]

@edfullest Several input issues were fixed in #2625. If you see it with latest pre-release build, please feel free to activate this issue back. Thanks!