Includes nick's code which I think is completely working

Add chores, delete chores functional
can now mark chores as complete
added filter tab for complete and uncompleted chores
completed chores currently cannot be unchecked, once a chore is completed it is marked as complete and the checkbox will disappear (may need to revisit this later)

delete confirmation added

need to figure out view update with edit chore and the currently responsible users, for some reason the highlighting doesn't work when you edit the chore i.e the order_index value is not being updated properly