Auth guard and auth service simplified and fixed so that user is updated upon login
Home component changed to use square buttons
Fixed showing the totals in the bill
ng linted the project
They are also linked to products / menu categroies as to which products they can be used on
The linking to menu categories is done in the frontend, database is linked directly to products
Treeview for menu categories yet to be done in modifier category detail form
Extracted Product Group -> Group_type to a a new object called Sale Category.
Moved tax from product to Sale Category for uniform taxes on types of sales.