Bug fix - for every PUT request, update changes without refresh

[skassam21]

• Your PUT requests should return the ‘new user model’
• In the props, there should be a function that is passed that can modify the state of a higher level component to update the user without refresh
• https://medium.com/@ruthmpardee/passing-data-between-react-components-103ad82ebd17
• AppComponent -> fetch the user and do all user manipulation
  • ProfileComponent -> edit information, call functions in AppComponent