Integrate UserProfile and update SignupFlow

[kennyjhcheng]

In this PR FE

• Using .env REACT_APP_SERVER_API_BASE in /client to set API URI instead of proxy
• Update logout to remove user profile from Redux
• Created reducer for UserProfile and associated UserProfileService for calls to API
  • This replaces the old AdditionalProfile and BasicProfile reducers which were removed
• Updated SignupFlow & integrated with backend
  • Users must input all required data to create their profile
  • Added required validation to many of the form inputs
  • Users can optionally input the other data as they want for their profile
  • Created Signup reducer so that even if user is interrupted during their signup, state is saved locally in localStorage
• Integrated Profile page with backend to update profile

BE

• Updated UserProfileController validation for required fields
• updateUserProfile request body can take partial number of parameters, update user profile by only specifying what is changing
• Removed some old constants that we aren't using anymore

Uploading db20d585-5779-4c73-bec3-fdf3da1e94e9.mp4…