Laundry view, bug fixes, refactoring

This commit includes a stub for an individual laundry’s view. It still
needs to fill in data.

#23 Dryers 5,6 work now.

#21 Pretty sure I got rid of this.

#19 This works for sorting and folding.

#15 Fixed.

#10 Beginning a sort or fold with no available colors is impossible now.

#9 I hit last commit. I have customer data but not employee data. I’m
still using test data for now.