Fix reconnection error messages

[Gold872]

When reconnecting the ComboBox Chooser, Split Button Chooser, and a widget dragging in (conditionally) would throw error messages

[codecov]

Codecov Report

Attention: Patch coverage is 25.00000% with 6 lines in your changes missing coverage. Please review.

Project coverage is 75.94%. Comparing base (d43edfd) to head (6c7e709).
Report is 1 commits behind head on main.

✅ All tests successful. No failed tests found.

Files with missing lines	Patch %	Lines
lib/pages/dashboard_page.dart	0.00%	6 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #188      +/-   ##
==========================================
- Coverage   75.97%   75.94%   -0.04%     
==========================================
  Files          80       80              
  Lines        8551     8555       +4     
==========================================
  Hits         6497     6497              
- Misses       2054     2058       +4     

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