[Web components] Action strip component is not rendered within tree grid

[mddragnev]

Description

If the tree grid is set to be a regular grid, then the action strip works fine.

• igniteui-angular version:
• browser:

Steps to reproduce

1. Open this sample with WC tree grid https://codesandbox.io/s/wizardly-shockley-llq3yk?file=/index.html
2. Observe

Result

Action strip is not showing

Expected result

Action strip should work fine

Attachments

Attach a sample if available, and screenshots, if applicable.

[mddragnev]

Works as expected. Closing the issue