Implement peer judging - Githubissues

This creates a few new pages to implement a frontend for the peer judging backend implemented in https://github.com/codeday/showcase-gql/pull/8

Technical details:

You can't vote for your own project
How many votes you are given is determined dynamically based on how many projects were at the event
People can change their votes by going to the voting page again, and it overwrites their old votes
people can only vote if they are a member of a project at the event
if you have participated in more than one event in the last 30 days, you get a page where you can select the region you want to vote for

codeday / www-showcase