Improve empty description placeholder UX

[dhanawadetanmay6-ctrl]

Thinking Path

• Paperclip orchestrates AI agents for zero-human companies
• [Which subsystem or capability is involved]
• [What problem or gap exists]
• [Why it needs to be addressed]
• This pull request ...
• The benefit is ...

What Changed

Verification

Risks

For core feature work, check ROADMAP.md first and discuss it in #dev before opening the PR. Feature PRs that overlap with planned core work may need to be redirected — check the roadmap first. See CONTRIBUTING.md.

Model Used

Checklist

• I have included a thinking path that traces from project context to this change
• I have specified the model used (with version and capability details)
• I have checked ROADMAP.md and confirmed this PR does not duplicate planned core work
• I have run tests locally and they pass
• I have added or updated tests where applicable
• If this change affects the UI, I have included before/after screenshots
• I have updated relevant documentation to reflect my changes
• I have considered and documented any risks above
• I will address all Greptile and reviewer comments before requesting merge