Update documentation for Angular 22.3 and WebComponents 7.5 changes #999

Tracks the documentation changes needed for the features in Ignite UI for Angular 22.3 and Ignite UI for Web Components 7.5, so none are missed at release. Each change that needs documentation is a sub-issue of this one.

When another feature that affects the docs lands in either release, add a sub-issue for it here.

Release board: https://github.com/orgs/IgniteUI/projects/1111