quick search modal cut off on smaller screens

Description of problem:

The quick search modal contents aren't scrollable and on small screens the contents is displayed beyond the bounds of the modal container.

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

Steps to Reproduce

1. go to topology
2. open the quick search
3. input a search that results in at least 5 results 
4. resize the screen to reduce the available vertical space

Actual results:

Expected results:

contents should shrink and be scrollable

Reproducibility (Always/Intermittent/Only Once):

always

Build Details:

4.7.0-0.nightly-2020-12-14-165231

Additional info: