error handling in account/routes

[#55348084] replace res.send(500) with next(err)
error handling in authentication/routes

[#55348084] replace res.send(500) with next(err)
whitespace cleanup
error handling in checkin/routes

[#55348084] replace res.send(500) with next(err)
error handling in checkin/routes

[#55348084] use err instead of updateErr
error handling in spimes/routes

[#55348084] use next(err) instead of res.send(500)
deleting spime shouldn't fail if there's no photo