chore: Use prettier on UI tests files

[KevLehman]

https://rocketchat.atlassian.net/browse/CORE-489

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This enables prettier rules to run on E2E UI tests files which will help us to with the style and foratting of our codebase

[dionisio-bot]

Looks like this PR is ready to merge! 🎉
If you have any trouble, please check the PR guidelines

[changeset-bot]

⚠️ No Changeset found

Latest commit: c9d48a8

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 56.38%. Comparing base (04b0a76) to head (c9d48a8).

Additional details and impacted files

@@             Coverage Diff             @@
##           develop   #32526      +/-   ##
===========================================
- Coverage    56.41%   56.38%   -0.04%     
===========================================
  Files         2436     2437       +1     
  Lines        53742    53773      +31     
  Branches     11076    11082       +6     
===========================================
  Hits         30319    30319              
- Misses       20779    20804      +25     
- Partials      2644     2650       +6     

Flag	Coverage Δ
e2e	56.08% <ø> (-0.07%)	⬇️
unit	72.15% <ø> (+0.01%)	⬆️

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[tiagoevanp]

LGTM!