Flipped default Settings Card Action Icon in RTL contexts

[Avid29]

Fixes #846

PR Type

What kind of change does this PR introduce?

Bugfix

What is the current behavior?

The default ActionIcon is a chevron that points right, regardless of the FlowDirection

What is the new behavior?

The default ActionIcon is a chevron that points outwards, flipping based on the FlowDirection

PR Checklist

Please check if your PR fulfills the following requirements:

• Created a feature/dev branch in your fork (vs. submitting directly from a commit on main)
• Based off latest main branch of toolkit
• Tested code with current supported SDKs(https://github.com/CommunityToolkit/WindowsCommunityToolkit-design-assets)
• Contains NO breaking changes

Other information

I'm not terribly happy with this solution. I think this poor solution represents an issue that the action icon maybe should be templated.