Move default attributes out of blades

[lrljoe]

This PR:

• Starts to remove non-class attributes from the views/blades, and migrates them to the core-code.
• Merges where there's superfluous bootstrap/tailwind duplication of view code

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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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Changes to Core Features:

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 90.63%. Comparing base (eda4c5e) to head (df1ebce).

Additional details and impacted files

@@                Coverage Diff                @@
##             development    #2136      +/-   ##
=================================================
+ Coverage          90.53%   90.63%   +0.10%     
- Complexity          1980     1988       +8     
=================================================
  Files                205      205              
  Lines               4488     4536      +48     
=================================================
+ Hits                4063     4111      +48     
  Misses               425      425              

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