[A11y]: Make panel header not overlay main header

[ethanwinters]

Browser

No response

Operating system

No response

Package version

1.1.0

React version (if applicable)

No response

Automated testing tool and ruleset

None

Assistive technology

No response

Description

Per a11y review, we should be opening the panels to underneath the chat header instead of on top of it.

WCAG 2.2 violation

No response

Reproduction / example

none

Steps to reproduce

From demo site select "buttons". Click on "open a panel". The panel goes over the header. The minimize/close button is unclear if its for the panel or for the whole chat.

Suggested severity

None

Code of conduct

• I agree to follow this project's Code of Conduct
• I checked the current issues for duplicate problems