Fixed AoT data binding in IncrementalLoadingCollectionSample

[Arlodotexe]

Fixes

This PR fixes #514

PR Type

Bugfix

What is the new behavior?

Switches to {x:Bind} instead of {Binding} and adds an x:DataType to the data template. The bound Name property now shows in this sample with AoT enabled.

PR Checklist

Please check if your PR fulfills the following requirements:

• [x] Based off latest main branch of toolkit
• [x] Tested code with current supported SDKs Guide and templates](https://github.com/CommunityToolkit/WindowsCommunityToolkit-design-assets)
• [x] Contains NO breaking changes