Enable unwanted ingredients for OPF and OPFF

[teolemon]

[monsieurtanuki]

@teolemon Quickly said, it's up to the server.
In Food, there is an unwanted_ingredients attribute group: https://world.openfoodfacts.org/api/v3.4/attribute_groups?lc=fr

        {
          "icon_url": "https://static.openfoodfacts.org/images/attributes/dist/contains-unwanted-ingredients.svg",
          "id": "unwanted_ingredients",
          "name": "Ingrédients indésirables",
          "parameters": [
            {
              "id": "attribute_unwanted_ingredients_tags",
              "name": "Ingrédients indésirables",
              "tagtype": "ingredients",
              "type": "tags"
            }
          ],
          "setting_name": "Ingrédients indésirables",
          "values": [
            "not_important",
            "important",
            "very_important",
            "mandatory"
          ]
        }

Not in Pet Food: https://world.openpetfoodfacts.org/api/v3.4/attribute_groups?lc=fr
Not in Products: https://world.openproductsfacts.org/api/v3.4/attribute_groups?lc=fr

[teolemon]

Thanks @monsieurtanuki I'll create a server side issue