Display mirroring information for Developers

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What does this MR do and why?

Previously, on the main project page we only display the mirror URL (and mirroring status) to Maintainers/Owners of the project, meanwhile we display this URL to everyone on the Commits page. With this MR, we display mirror URL and status to Developers on both pages.

References

Closes #362654

Screenshots or screen recordings

Before	After

MR acceptance checklist

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