fix(files): set focus on image description right after inserting

[JuliaKirschenheuter]

📝 Summary

Set focus on image description right after inserting

• Part of: Design review issues 2024-07-30 #6152
  After inserting an attachment, focus should go after the the image -> to the image description

🖼️ Screenshots

🏚️ Before	🏡 After

🏁 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 for tackling this. I'd suggest to backport the fix to stable30 and stable29 at least.

[JuliaKirschenheuter]

/backport to stable29

[JuliaKirschenheuter]

/backport to stable30

[JuliaKirschenheuter]

/compile amend /

[mejo-]

@JuliaKirschenheuter there's no need to compile PRs before merging them in the text repo (even though it's a shipped app). We have a CI job that does this after the merge in this repo - which greatly simplifies working with PRs.