Description of problem:

Dev Catalog group by dropdown is not aligned on Firefox browser.

Prerequisites (if any, like setup, operators/versions):

Steps to Reproduce

1. Open the Dev Catalog page on Firefox

Actual results:

The group by dropdown is not aligned

Expected results:

The group by dropdown should be aligned with the search filter

Reproducibility (Always/Intermittent/Only Once): Always

Build Details: 4.7.0-0.nightly-2021-01-10-070949

Additional info: