Add Edit/Delete activity buttons to Resident Activities table for single resident

It may be useful for users to delete/edit activities while viewing a single resident activity table. However, the following should be observed:
- only activities within 7 days should be editable
- when 'deleting' a resident activity with other residents, the single resident is removed
- the activity is not actually deleted, so that it does not affect other resident data

The seven day activity edit/delete feature is already active on the 'manageActivityButtons' template. The additional logic to only remove a single resident upon 'deletion' needs to be written.