Rating video does not remove video from "rate-later list"

[lenhoanglnh]

All my rate-later videos have now received at least 3 ratings by me, but they're still in my "rate-later list" 😅

[tchaumeny]

As discussed on Discord, this should be implemented in the backend (and then removed from website front).

Maybe this could be implemented within the save method of the ExpertRatingsSerializerV2:

class ExpertRatingsSerializerV2(serializers.HyperlinkedModelSerializer):
    ...

    def save(self, **kwargs):
        super().save(**kwargs)
        # Remove self.validated_data['video_1'] and self.validated_data['video_2'] from rate later list
    ...

[tchaumeny]

See https://github.com/tournesol-app/tournesol/issues/74