fix(i18n): extract translations on plugins folder

[igobranco]

fixes #1588

Description

This pull request fixes the extract translations process for the plugins folder.
This increases the messages that are going to be extracted, making it possible to translate more of this application.

This PR is useful for "Operators" that use Studio and Course authoring MFE on a different language than English.

Testing instructions

Run the extract_translations on master and on this PR:

make extract_translations
wc -l temp/babel-plugin-formatjs/Default.messages.json

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[e0d]

@igobranco I added you to the triage team so tests will run automatically for you going forward. This PR seems to have stuck jobs, can you push an empty commit or similar to see if it kicks off the checks again?

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 93.07%. Comparing base (8385c4e) to head (a434a17).
Report is 6 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #1589   +/-   ##
=======================================
  Coverage   93.07%   93.07%           
=======================================
  Files        1092     1092           
  Lines       21617    21617           
  Branches     4577     4655   +78     
=======================================
  Hits        20120    20120           
+ Misses       1431     1425    -6     
- Partials       66       72    +6     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

[igobranco]

@igobranco I added you to the triage team so tests will run automatically for you going forward. This PR seems to have stuck jobs, can you push an empty commit or similar to see if it kicks off the checks again?

Thanks @e0d