RUN-52 Link functions to db

[Jnwong116]

Changes

• Fixed custom message after logging into FB
• CandidateFlyout now loads position user is running for
• Fixed mongoose schema
• Fixed react-toastify to display toasts
• Fixed position list dropdown to autofill with positions user is already considering
• Changed home.js to react class, now it contains user and candidates which it passes down to personList and welcomeCard
• Changed welcomeCard back to react function
• Changed personList back to react function
• Linked to heroku
• Merged the updateVision and updatePosition functions together, combing into one new route updateVisionAndPosition
• Linked updateProfileModal to DB. Now all functions work
• Added error toast if user does not submit vision name and link at the same time

Checklist

• [x] Pull request has descriptive context useful to reviewer. Screenshots are attached as necessary.
• [x] Pull request title matches Linear ticket.
• [x] Ticket has been claimed on Linear
• [x] Pull Request has been assigned to yourself
• [ ] Pull request has been approved by CodeOwner
• [ ] Pull request has been approved by one other student

[linear[bot]]

RUN-52 Link Functions to DB

* When user updates their profile, it should move them to considering or decided * When logging into FB, update profile modal should have all correct info