Replaced CargoCapacityNagDialog functionality

[IllianiCBT]

This commit removed the CargoCapacityNagDialog functionality and all of its references. The cargo capacity report was redesigned to be more interactive, showing color-coded status directly in the Campaign Summary report. Users will no longer receive a dialog prompt when cargo capacity is exceeded, instead, they'll be visually prompted within the campaign statistics display, as shown below.

Within Capacity:

Cargo at Capacity:

Cargo Exceeds Capacity

(Actual colors dependent on MekHQ color options)

This implementation was my original intent, prior to writing the nag. However, at the time, I didn't have the knowledge necessary to get it to work so settled on a nag. That nag proved incredibly annoying, so has been removed.

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 10.27%. Comparing base (f7bd31c) to head (36b53d5).
Report is 1 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff            @@
##             master    #4388   +/-   ##
=========================================
  Coverage     10.27%   10.27%           
  Complexity     5811     5811           
=========================================
  Files           925      924    -1     
  Lines        126031   126031           
  Branches      18627    18628    +1     
=========================================
  Hits          12945    12945           
  Misses       111811   111811           
  Partials       1275     1275           

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[HammerGS]

Tested and seems to work