New request flow for students

Description

Students go to the queue for roughly two reasons: to enqueue and to view their booked time slot. Queue should support this as much as possible by putting its student features in a workflow for the most logical use case. This issue addresses the request creation process.

Todo

• Design a new workflow
  • Users can go as quickly as possible to creating a request
  • Creating a request should not be harder than it currently is
  • Put as many things we want students to do (put in an actual question, wait patiently, give feedback) on their path without it being obnoxious.
  • Do iterative design: make design, show to users, edit design, repeat.
• Implement