[User Settings] Allow Observer Accounts To Retain +Student Button

[kurtpopovich]

Problem statement:

If a parent removes a student from their observer account, I find no way to re-add a student to observe using a code. The only thing I can figure out is to delete the observer account and have them create a new one. It seems that when the observer account removes a student, the account is no longer an "observer" and goes in limbo.

Proposed solution:

Add a button for a created account to pair with a student.

User role(s):

admin,observer