[sefas24]

Describe your changes

Week05 homework: emails_sefa_sagirli.py defines the Emails class, a subclass of list, which validates the given email addresses (only strings and valid addresses are allowed, otherwise ValueError is raised), removes duplicates and implements __repr__ and __str__.

Checklist

• I have read the [CONTRIBUTING]
• I have performed a self-review of my own code
• I have run the code locally and it works as expected
• I have commented my code, particularly in hard-to-understand areas