Removing '-1 +' from media queries

[jacobo-dominguez-wgu]

Description

Removing -1 + from media queries on css files since it does not affect the display.
All removals were verified and they do not represent any visual difference on the rendered screen.
Issue: #1701

Screenshots for before and after

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 90.45%. Comparing base (d1dede5) to head (18e537b).
Report is 1 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #1727   +/-   ##
=======================================
  Coverage   90.45%   90.45%           
=======================================
  Files         344      344           
  Lines        5802     5802           
  Branches     1395     1398    +3     
=======================================
  Hits         5248     5248           
  Misses        535      535           
  Partials       19       19           

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[wgu-jesse-stewart]

Looks good!