Merge pull request CommunityToolkit#1323 from Microsoft/dev

1.5.1

Merge pull request CommunityToolkit#1291 from Microsoft/dev

Merging dev to master for 1.5

Merge pull request CommunityToolkit#1074 from Microsoft/dev

1.4.1

Merge pull request CommunityToolkit#1059 from IbraheemOsama/GridSplit…

…terFocusTrap

Grid splitter focus trap

Merge pull request CommunityToolkit#907 from Microsoft/dev

1.3.1

Updated nuget

Merge pull request CommunityToolkit#629 from Microsoft/dev

Merging 1.2 to master

Merge pull request CommunityToolkit#618 from lukasf/dev

Fix DispatcherHelper open issues

Merge pull request CommunityToolkit#592 from Microsoft/finalpolishing

Cleaning last warnings

Update index.md