Minor Update for WASDK App (with a surprise)

[NoobNotFound]

This is not a change for uno-platform, this is for old WASDK app.
This also Includes some surprise for you. I already did a release with full details Version 0.7.12

Resolved / Related Issues

• Closes #48 Can't verify, because I can't reproduce it.

Steps used to test these changes

1. Just build the old Package.WinUI
2. Try our yourself

[NoobNotFound]

@Lamparter review our good old app