[Bug]: User not getting caught in ComposedModal focus trap

[RachelGHogan]

Package

@carbon/react

Browser

Chrome

Package version

1.69.0

React version

No response

Description

If you have a ComposedModal and don't explicitly pass it an element you want focus on, you don't get automatically moved to/caught in the focus trap.

Reproduction/example

https://stackblitz.com/edit/github-xvaxt4-zt45ye?file=src%2FTearsheet.scss

Steps to reproduce

1. Open the stackblitz linked in the reproduction/example section above
2. Click (or tab to and press enter) on the first button with the text "launch composed modal"
3. Press the tab key to observe that focus is still on the base page (you will be tabbing through the other buttons, as focus was not moved to the modal)

Suggested Severity

None

Application/PAL

No response

Code of Conduct

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