refactor(config): rename config method and refactor to centralize --config logic

[bearomorphism]

[codecov[bot]]

Codecov Report

:white_check_mark: All modified and coverable lines are covered by tests. :warning: Please upload report for BASE (v4-10-1@6c8fad1). Learn more about missing BASE report.

Additional details and impacted files

@@            Coverage Diff             @@
##             v4-10-1    #1687   +/-   ##
==========================================
  Coverage           ?   98.71%           
==========================================
  Files              ?       60           
  Lines              ?     2644           
  Branches           ?        0           
==========================================
  Hits               ?     2610           
  Misses             ?       34           
  Partials           ?        0           

Flag	Coverage Δ
unittests	98.71% <100.00%> (?)

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