Make an event/:id/manage page

[maebeale]

add to it an index of event_registrations with registrant profile buttons, default sorted alpha by first name, along w their organization links (same as on People index)

show Payment status column with label if they have NOT paid in full, if payment required for that event (referencing booleans on event_registration and/or associated payment totals) -- don't need the column if event doesn't have payment

show Attendance status column referencing new status column on event_registrations

• Registered (before date of event)
• Attended
• Incomplete attendance
• Cancelled
• No show

add button to top right with csv download of event registration data: first name, last name, email, phone, organization, payment status, payment total

[maebeale]

done! thanks @RJV333 !