As a mentor, I want to easily be able to add availability from my profile

[esparr]

We would like to see a new design for the Timeslot component that makes it easier for mentors to add availability from their profile page.

This issue is dependent on this issue:
Momentors

This should be pair with the following ticket: Momentors (view)

Acceptance Criteria:

• Design exists in Figma for Timeslot component on Mentor Profile

• Design follows our style guide

  Functionality

  • Mentor can add availabilities
  • Mentor can delete availabilities
  • Mentor can see all availabilities in the future