Engineering Notebook for week of 11 28

Changelog:

• Added star rating for the artist page (instead of showing artist popularity from the spotify api, we now display the cumulative user ratings).
• Improved the behavior/functionality for several pages: e.g the when clicking on an album in the artist page, the user is properly redirected to the corresponding album page.
• Added some of the album rating functionality (instead of the artist like/dislike, we use a 1-5 type rating).

To Do:

• Fix up small functionality discontinuities.
• Add a dislike feature.
• Clean up app to prepare for the final leg submission!