Add gl-badge for badges in admin sidebar
What does this MR do and why?
Picking up !57949 (closed)
MR acceptance checklist
This checklist encourages us to confirm any changes have been analyzed to reduce risks in quality, performance, reliability, security, and maintainability.
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I have evaluated the MR acceptance checklist for this MR. -
I have credited yoginth.eth in the changelog entry in accordance to our rules (https://docs.gitlab.com/ee/development/contributing/#closing-policy-for-issues-and-merge-requests)
Edited by Nick Veenhof