Code review comment for lp:~mhall119/loco-team-portal/fix-509675-and-add-team-event

To make the interface more intuitive, I added a link on the Events page to add a new Team Event. If the user is not listed as an admin on any team, they are told they cannot add a new team event, and redirected to the events list. If they are the admin on more than one team, they are shown a list of team links they can add an Event for. If they are the admin on only one team, they are redirected to that team's add event page.