Small changes on screen files cause issues with .pot on CI

[tuliomir]

During the execution of #567 , which changed no screen files, the CI accused that the .pot files were incorrect.

Looking at the the pot file after the update, it was identified that many of those changes were made by #555, a PR that passed successfully on CI and was merged to master. Three subsequent PRs also passed the CI and were successfully merged after it, and it only started to trigger CI errors on the mentioned 567.

This indicates that our current CI process does not validate all the changes that were made to screens translatable texts, and is triggered by criteria that is not obvious.

We should revisit this check_pot script and look for a way to fix this.