General Improvements

[viceroypenguin]

• More Collection Expression improvements
• Fix unit test behaviors
• Improve .editorconfig
• Fix whitespace styles

Fixes #623
Fixes #625

[codecov]

Codecov Report

Attention: 1 lines in your changes are missing coverage. Please review.

Comparison is base (acc01e1) 93.77% compared to head (ceaec6c) 93.77%.
Report is 1 commits behind head on master.

❗ Current head ceaec6c differs from pull request most recent head 12280d7. Consider uploading reports for the commit 12280d7 to get more accurate results

Files	Patch %	Lines
...ce/SuperLinq/Collections/UpdatablePriorityQueue.cs	50.00%	1 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #635   +/-   ##
=======================================
  Coverage   93.77%   93.77%           
=======================================
  Files         248      248           
  Lines        7786     7786           
  Branches     1592     1592           
=======================================
  Hits         7301     7301           
  Misses        294      294           
  Partials      191      191           

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