[frontend] Add Playwright teams webhook

[jpkha]

Add a team webhook for Playwright. In case of failure, we receive some screenshots so that we can debug more easily.

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 66.75%. Comparing base (932c5d0) to head (ee5bae0).

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #6178   +/-   ##
=======================================
  Coverage   66.74%   66.75%           
=======================================
  Files         541      541           
  Lines       64553    64553           
  Branches     5306     5307    +1     
=======================================
+ Hits        43088    43091    +3     
+ Misses      21465    21462    -3     

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[labo-flg]

Let's move on with this PR, we can try and see how it looks and if it's useful

[lndrtrbn]

@jpkha could you merge it if it's good for you?

[jpkha]

I merged it, but we still don't have any way to hide the team's URL, so it won't work yet, but it also won't crash anything.