Update font-style on code quality inlinefindings

What does this MR do and why?

This MR solves: #366644 (closed) It updates the font of the code-quality inline findings.

Screenshots or screen recordings

before	after

How to set up and validate locally

1. Feature.enable(:refactor_code_quality_inline_findings)
2. Clone this project in your GDK https://gitlab.com/jannik_lehmann/code-quality-test
3. Recreate this MR or open up a MR with code Quality Issues yourself
4. go visit the changes tab on the MR and hover/click the CodeQuality indicator to see the changes in action

MR acceptance checklist

This checklist encourages us to confirm any changes have been analyzed to reduce risks in quality, performance, reliability, security, and maintainability.

• I have evaluated the MR acceptance checklist for this MR.