Change BOX styling

[jmthomas]

closes #1943

[jmthomas]

I also allow for stying of the title with font-size, text-align, etc via SUBSETTING 0 and the line with SUBSETTING 1.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 76.72%. Comparing base (9d94238) to head (b4e1613).
Report is 4 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1948      +/-   ##
==========================================
+ Coverage   76.68%   76.72%   +0.04%     
==========================================
  Files         628      628              
  Lines       46637    46637              
  Branches      755      755              
==========================================
+ Hits        35765    35784      +19     
+ Misses      10789    10770      -19     
  Partials       83       83              

Flag	Coverage Δ
python	84.23% <ø> (∅)
ruby-api	48.39% <ø> (∅)
ruby-backend	82.60% <ø> (∅)

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[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud