feat: normalize emotion attributes as whole numbers in display

TEST PLAN

Create a new user
Navigate to Playlist Page and request a playlist for an emotion
[x] Assert no emotion attribute values are displayed
Navigate to Browse Page, request a playlist for an emotion, and vote on some songs
Navigate to Playlist Page and request a playlist for the voted emotion
[x] Assert emotion values are displayed as whole numbers

Moody-Tunes / moodytunes