React Modal Host View - Dispatch All Key Events

[AechDub]

Introduction

React Modal Host currently only dispatches onKeyUp. We should dispatch all key events here.

Details

I'm trying to understand if there's a reason to only dispatch key up events here. It seems we should dispatch all events. Currently, this breaks some keyboard navigation items that are important for accessibility.

Discussion points

Is there a reason this is currently only key up? Is making this change to dispatch all key events acceptable?