Correct documentation on default LED Widget width

[clayandgen]

The default width of LED widget (in LED) is 20, whereas the default for LABELLED is 15. Correcting documentation to reflect this.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 80.25%. Comparing base (1fd98c1) to head (9b4a8ec).
Report is 27 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2228      +/-   ##
==========================================
- Coverage   80.26%   80.25%   -0.01%     
==========================================
  Files         638      638              
  Lines       47616    47628      +12     
  Branches      745      745              
==========================================
+ Hits        38217    38223       +6     
- Misses       9316     9322       +6     
  Partials       83       83              

Flag	Coverage Δ
python	83.88% <ø> (-0.04%)	⬇️
ruby-api	84.70% <ø> (ø)
ruby-backend	82.96% <ø> (+<0.01%)	⬆️

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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