[ComposedModal] Close button in incorrect position in RTL

[kevinsperrine]

What package is this for?

• React
• Angular

Describe the bug

When in RTL, the close button of the composed modal should appear on the left side. The padding of header should be adjusted, too.

To Reproduce

Go to any ComposedModal story and turn on RTL on the RTL storybook addon.

Expected behavior

The close button should move to the left side in RTL.