#4484194 Session dashboard: Do not allow last minute reschedule/cancel

Changes proposed in this Pull Request

• If the time left to start the session is less than one hour, then do not display the option to reschedule/cancel a session in the session dashboard.

With more than one hour left for the session to begin, users can see the Reschedule/Cancel button:

With less than one hour to go, the reschedule/cancel button is hidden:

Testing instructions

Depends on D49790-code.

• Schedule a session and verify that the Reschedule/Cancel option in the session dashboard is not displayed if there’s less than 1 hour for the session to begin
• If there’s less than one hour for the session to begin, try visiting the direct cancel URL and check that you cannot cancel. You should see a notice like this: