Android Menus display InputGesture in a non-friendly way.

[IanRawley]

Describe the bug

When a MenuItem has a Gesture set to the InputGesture, on Android devices the gesture displays the Key enum string rather than a more userfriendly version. For example "OemPeriod" instead of "."

This is because the PlatformKeyGestureConverter used (at least by the Simple theme) doesn't have a specific Android case, and falls back to KeyGesture.ToString() rather than using it's own methods for more user friendly string creation.

To Reproduce

Add an InputGesture of, for example "Meta+." to a MenuItem and open the menu on Android. Screenshots below.

Windows:

Android:

Expected behavior

Android also displays userfriendly strings rather than Key enum values.

Avalonia version

11.1.0-beta1

OS

Android

Additional context

Pull Request coming soon.