Clone button on small screens looks stretched around the dropdown toggle

Summary

On the repo page, the caret icon part of the clone button looks stretched on screen sizes lower than 768px

Steps to reproduce

1. Navigate to any repo page
2. Reduce the width of the screen to lower than 768px.
3. Notice that the clone button is stretched out around the dropdown toggle.

Example Project

https://gitlab.com/gitlab-org/gitlab/

What is the current bug behavior?

The dropdown toggle of the clone button looks stretched.

What is the expected correct behavior?

It would be nice if the toggle had a fixed with (maybe UX can provide accurate input here)

Relevant logs and/or screenshots