Clean up Column Component View and Slot behaviours

[lrljoe]

Clean up and add tests for Component Views, and Slot behaviours

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• Have you followed the guidelines in our Contributing document?
• Have you checked to ensure there aren't other open Pull Requests for the same update/change?

New Feature Submissions:

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2. Did you update all templates (if applicable)?
3. Did you add the relevant documentation (if applicable)?
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Changes to Core Features:

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[codecov]

Codecov Report

Attention: Patch coverage is 70.00000% with 6 lines in your changes missing coverage. Please review.

Project coverage is 91.16%. Comparing base (1d83e0e) to head (bbe83cc).
Report is 1 commits behind head on development.

Files with missing lines	Patch %	Lines
src/Views/Traits/Columns/HasSlot.php	58.33%	5 Missing ⚠️
src/Views/Columns/ComponentColumn.php	0.00%	1 Missing ⚠️

Additional details and impacted files

@@                Coverage Diff                @@
##             development    #2169      +/-   ##
=================================================
- Coverage          91.20%   91.16%   -0.04%     
+ Complexity          1991     1990       -1     
=================================================
  Files                212      212              
  Lines               4500     4496       -4     
=================================================
- Hits                4104     4099       -5     
- Misses               396      397       +1     

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