Fixes #4485 toggle cell happening on every mouse click

[tznind]

Fixes

• Fixes Toggle is on by default and is horrible (TableView) #4485

Proposed Changes/Todos

• Todo 1

Pull Request checklist:

• I've named my PR in the form of "Fixes #issue. Terse description."
• My code follows the style guidelines of Terminal.Gui - if you use Visual Studio, hit CTRL-K-D to automatically reformat your files before committing.
• My code follows the Terminal.Gui library design guidelines
• I ran dotnet test before commit
• I have made corresponding changes to the API documentation (using /// style comments)
• My changes generate no new warnings
• I have checked my code and corrected any poor grammar or misspellings
• I conducted basic QA to assure all features are working

[tig]

You have failures:

https://github.com/gui-cs/Terminal.Gui/actions/runs/21763503930/job/62793122185?pr=4692

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 77.34%. Comparing base (eba9bb6) to head (71bc8c4).

Additional details and impacted files

@@              Coverage Diff               @@
##           v2_develop    #4692      +/-   ##
==============================================
+ Coverage       77.32%   77.34%   +0.01%     
==============================================
  Files             447      447              
  Lines           45033    45033              
  Branches         6543     6543              
==============================================
+ Hits            34821    34829       +8     
+ Misses           8326     8322       -4     
+ Partials         1886     1882       -4     

Files with missing lines	Coverage Δ
Terminal.Gui/Views/FileDialogs/FileDialog.cs	52.33% <100.00%> (-0.46%)	⬇️
....Gui/Views/TableView/CheckBoxTableSourceWrapper.cs	55.12% <100.00%> (ø)
Terminal.Gui/Views/TableView/TableView.cs	84.41% <100.00%> (+0.19%)	⬆️

... and 5 files with indirect coverage changes

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[tig]

And can you add unit tests so this stays fixed?

[tznind]

Sorry should have created as draft, its a WIP

[tznind]

• Checkboxes continue to work correctly in TableEditor
• When using Multiple in FileDialog you can select multiple files with Space

selecting 3 files

Hmn hold up just spotted another bug although probably an old one, the radio button option in table editor seems to just flip checkboxes too.

Actually it works:

• if you toggle checkboxes on and then off
• if you toggle radio on and then off
• if you always toggle the last one off before toggling next one on

But

• It doesn't work to flip between the two.

I can dig into it at some point - probably best as a seperate issue.

[tznind]

This is ready for review when you get a chance @tig