Workers’ compensation — Compensable accidents — Recreational activity — Injury sustained while claimant was bowling with co-workers during regular working hours was work related where activity was an expressly required incident of employment and produced substantial direct benefit to the employer beyond improvement in employee health and morale — Availability of an electronic option to decline employer’s email invitation was not sufficient to establish that claimant’s participation in event was voluntary — Moreover, claimant’s supervisor testified that one purpose of the event was to discuss goals for the next year