Create API route to add attempts to Firebase

[khandrew1]

• Create a new API route that adds attempts to Firebase backend
• This is an example of how an attempts document looks like
  
• Call it addAttempt.js
• You can look at updateUserInfo.js on some information, but you are adding a document not updating, so look into firebase docs on how to do that
• You can also look at the session function in [...nextauth].js on how we pull data from that collection
• Make sure the route is authenticated