Blurred text in popups

Summary

There are popups with blurred text

Steps to reproduce

Click on "Clone" button or "+" (Plus) button

Example Project

This bug is project independent

What is the current bug behavior?

The text inside popup is blurred, it is hard to read.

What is the expected correct behavior?

Text should be clear as in the rest of the app

Relevant logs and/or screenshots

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Output of checks

This bug happens on GitLab.com