Added missing Reto_02_en challenge

[its-ChaTTy]

Summary

Created Reto02_en & added E2E tests for the same based on Issue #288 .

Checklist

• [x] Variables, functions and comments are translated to Spanish
• [x] Functions follow underscore notation
• [x] Spell check done & typos fixed
• [x] All python code is PEP8 compliant
• [x] Test coverage with Playwright implemented; locators are Pyhton code
• [x] Reviewers assigned (all peers & at least 1 mentor)

[github-actions[bot]]

Published to http://pyar.github.io/PyZombis/309/index.html

[its-ChaTTy]

@sujith-rek the error messages have been updated.

[github-actions[bot]]

Published to http://pyar.github.io/PyZombis/309/index.html

[its-ChaTTy]

@its-ChaTTy Thanks. Please remove the build_info file.

Hi @NicolasSandoval, I don't think so there is any such file in recent commit

[NicolasSandoval]

@its-ChaTTy you're right, the last commit removed it. Thanks.