Standardize wishlist returns

[guitavano]

Issue Type

Please select the type of issue you are reporting:

• Feature Request
• Discussion

Description

Currently, the wishlist loaders return different types for each integration.

VTEX

const loader = async (
  props: Props,
  req: Request,
  ctx: AppContext,
): Promise<WishlistItem[]> => {

WAKE

const action = async (
  _props: unknown,
  req: Request,
  ctx: AppContext,
): Promise<WishlistReducedProductFragment[]> => {

Expected Behavior

We expect the same type of return, so we can be able to reuse this result in front end components.

Actual Behavior

This creates the problem of not being able to build canonical components on the front end.

[matheusgr]

Remember to create new loaders and deprecated the current ones.