Update config.dart

auth module functioning

added login functionalities for cart and profile

added order history and statys

added order menu

added checkpoints for order confirmation

checkout functionalities base added

variable product functioning. issue was with cast to List<String>. converted to plain string

fixed models returning null

variable product mechanism added with api & UI

added cart page with functionalities

providers added, product page complete. related products & categoryIds need work

connected product card to homepage tag products

product page structure added

images fix, issue was with model initializer. search, pagination, filter added.