[Dark Mode] Global Search rest state is unreadable and broken

Summary

Search component in header navigation is affected by a bug that makes it unreadable on dark mode

Steps to reproduce

• Log into GitLab
• Set your theme to dark mode
• go to any page
• type in any text into the search component in the header

What is the current bug behavior?

The header search component is unreadable on dark mode when you type in text and leave focus

What is the expected correct behavior?

Text should be set to color: #fafafa

Relevant logs and/or screenshots

Possible fixes

Make the text readable when the search field is not in focus by changing the color: