Problem

• On https://world.openfoodfacts.org/product/8719128117829/7up-free-mojito, we recommand products from the Mojito syrups category, which is not really helpful in terms of health. Conversely, we might have similar issues on the environment (eg in a beef steak category)
• To make actually relevant/good alternative recommandations to a food item in Open Food Facts, we need a category_equivalent_to property. For instance as an alternative to the "mojito syrups" category, suggest the "lemon flavored waters" category.
• Another option would be to use ML to do that, or to use ML to create the alternative category recommandations

@raphael0202 @stephanegigandet