fix(landingpage): Do not show the Team Overview button on public share

[tintou]

📝 Summary

Do not show the Team Overview button on public share

🏁 Checklist

• Code is properly formatted (npm run lint / npm run stylelint / composer run cs:check)
• Sign-off message is added to all commits
• Tests (unit, integration and/or end-to-end) passing and the changes are covered with tests
• Documentation (README or documentation) has been updated or is not required

[mejo-]

Thanks a lot for the contribution, much appreciated 🙏

[mejo-]

I pushed your commit into a new PR to fix the rebase conflicts in this one. #1729

[github-actions]

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