1.) Collection view for the categories

1.) The use of package manager (Cocoapods in this case)
2.) Usage of Alamofire
3.) Usage of KingFisher
4.) Ensure data persistence (Realm was used for the entirety of the app)
5.) Manage offline state? (Should work in theory; no testing device is available)

Imported combine for search functionality. Modified ProductManager to handle the search queries. Programatically added a search bar under the navigator of PopulateController