add product inventories component

add add product razor component

implement search and display inventory component

implement add product interface

update product class, add add product and product inventory classes

update products

update inventory and product parameters, update program and navmenu files

implement product list and components

update view products by name class

add search components

update program and import files, add product repository interface

add product repository interface and update program.cs

implement view product by name class and interface

add product class

add edit inventory