fix(web): web app description missing

[JzoNgKVO]

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Summary

Fix web app description missing

Screenshots

Before	After
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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 85.94%. Comparing base (28153df) to head (c70f797).
⚠️ Report is 3 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main   #36209   +/-   ##
=======================================
  Coverage   85.94%   85.94%           
=======================================
  Files        4454     4454           
  Lines      210917   210918    +1     
  Branches    39427    39427           
=======================================
+ Hits       181272   181273    +1     
  Misses      26442    26442           
  Partials     3203     3203           

Flag	Coverage Δ
dify-ui	94.40% <ø> (ø)
web	86.60% <100.00%> (+<0.01%)	⬆️

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