Fix bugs

[betogaona7]

When specifying the list item types in the function params like list[Face] or list[np.ndarray] will throw the following error TypeError: 'type' object is not subscriptable - to fix it, we just need to declare that its type is a list.

The previous commit #2 converts the face_image and mask_image to a shape of [h, w, 4], but the original entire_image and entire_mask_image keep the shape of [h,w,3] causing a broadcasting error. To fix it, I just extended the number of channels as in #2

[ototadana]

@betogaona7 Thank you ❤️