fix: font size of code fragments in descr

[JossyYila]

• Kind: bugfix

• Close #214

Description

tested with firefox:

Checklist

• [ ] Read the CONTRIBUTING.md guide and:
  • [ ] Use Atomic Commits so each commit gathers a single logical change
  • [ ] Use Conventional Commits regarding commit messages (needed by our release toolchain)
• [ ] Add/update tests
• [ ] Add/update documentation
• [ ] …

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