fix(web): show empty-state messages in the browse file-tree panel - #1531

Bugbot Analysis Progress (1m 45s elapsed)

✅ Gathered PR context (2s)
✅ Completed bug detection (1m 40s)
✅ Posted analysis results (2s)

Final Result: Bugbot completed review - no new issues found. 1 previously reported issue remain unresolved.

Request ID: serverGenReqId_00740a9f-5fbc-4121-872c-1d27a483e488