[S] Add unit to total attendance for Day Use activities

Description

As a bc parks admin A&R user, I want to easily understand what the total field on Day Use Activity means.

This is a display update only, no change to calculation.

Day Use Activity form would show:

1. Total Attendance (People), (Vehicle count x 3.5) = (Bus count x 40) + trail count

Acceptance Criteria

• Field in A&R admin UI shows Total Attendance (People) on day use activity instead of Day Use (attendance)

Notes