fix(sftp): refresh expanded directories

[iamazy]

No description provided.

[codecov]

Codecov Report

❌ Patch coverage is 35.94306% with 180 lines in your changes missing coverage. Please review.
✅ Project coverage is 55.00%. Comparing base (1466b21) to head (7b67bc7).

Files with missing lines	Patch %	Lines
crates/gpui_sftp/src/view/render.rs	0.00%	57 Missing ⚠️
crates/gpui_sftp/src/view/table/actions.rs	0.00%	40 Missing ⚠️
crates/gpui_sftp/src/view/table/delegate.rs	10.81%	33 Missing ⚠️
crates/gpui_sftp/src/view/mod.rs	42.85%	28 Missing ⚠️
crates/gpui_sftp/src/view/table/navigation.rs	82.53%	11 Missing ⚠️
termua/src/panel/sftp_panel.rs	68.57%	11 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #47      +/-   ##
==========================================
- Coverage   55.06%   55.00%   -0.07%     
==========================================
  Files         158      158              
  Lines       54438    54693     +255     
==========================================
+ Hits        29979    30085     +106     
- Misses      24459    24608     +149     

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