Slice manages, encapsulates, and operates a
portion of your application's data. For example, if you have a page that displays a user list, then you can have a slice called 'UsersPageSlice' that contains all the users in its state, also the functions to read it from the store and the functions to update the users in the list. So, in short, a slice is a redux-toolkit slice also containing the relative
redux-saga operations within its folder. After all, they are all related to managing the same portion of the data.