fix: transfer workspace dropdown not show

[iamjoel]

Summary

1. Fix transfer workspace dropdown not show.
2. Hide useless error sending message.

Checklist

• This change requires a documentation update, included: Dify Document
• I understand that this PR may be closed in case there was no previous discussion or issues. (This doesn't apply to typos!)
• I've added a test for each change that was introduced, and I tried as much as possible to make a single atomic change.
• I've updated the documentation accordingly.
• I ran make lint && make type-check (backend) and cd web && pnpm exec vp staged (frontend) to appease the lint gods

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 85.82%. Comparing base (376c43e) to head (a0cdbfd).
⚠️ Report is 5 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main   #35876   +/-   ##
=======================================
  Coverage   85.82%   85.82%           
=======================================
  Files        4461     4460    -1     
  Lines      209168   209090   -78     
  Branches    39129    39111   -18     
=======================================
- Hits       179522   179459   -63     
+ Misses      26470    26455   -15     
  Partials     3176     3176           

Flag	Coverage Δ
dify-ui	93.93% <ø> (+0.66%)	⬆️
web	86.77% <100.00%> (-0.01%)	⬇️

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[CodingOnStar]

LGTM