Add a simple Playwright test

[oalders]

• npm install --save-dev @playwright/test
• Add a script to install Playwright
• Add playwright config
• Add a very basic Playwright test
• Add Playwright testing to test workflow

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 73.48%. Comparing base (afb9fa5) to head (364d5ae).
Report is 8 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #3335      +/-   ##
==========================================
- Coverage   73.56%   73.48%   -0.09%     
==========================================
  Files          68       68              
  Lines        2387     2387              
  Branches      335      335              
==========================================
- Hits         1756     1754       -2     
- Misses        506      507       +1     
- Partials      125      126       +1     

see 1 file with indirect coverage changes

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