Create methods in Genre and MusicAlbum classes

[K0ppai]

Hello @batoolfatima2135,
I've worked on the following in this pull request,

• Implement methods:
  • add_item method in the Genre class
    • should take an instance of the Item class as an input
    • should add the input item to the collection of items
    • should add self as a property of the item object (by using the correct setter from the item object)
  • can_be_archived?() in the MusicAlbum class
    • should override the method from the parent class
    • should return true if parent's method returns true AND if on_spotify equals true
    • otherwise, it should return false
• Add unit tests for all implemented methods.

[batoolfatima2135]

Hi @K0ppai,

Your project is complete! There is nothing else to say other than... it's time to merge it
Congratulations! 🎉

Highlights

✅ All linters are passing
✅ Great work fixing the bug

Cheers, and Happy coding!👏👏👏