Add pagination to participations

[ashleybot]

• [x] You'll need to add more than 10 participation records to your local dev env in order to test
• [x] Paginates participations table in page sizes of 10
• [x] Clicking "Next" button goes to the next page
• [x] Clicking "Previous" button goes to the previous page
• [x] If there is no previous or next page available then the button is disabled
• [x] Pagination area shows calculation of current record indices for the current page including overall total