fix: 7107 - remove the "example" product only at the end of the on-boarding (#7112)

* fix: 7107 - remove the "example" product only at the end

* more resilient tests for method "isProductIncomplete"; added data

Impacted files:
* `product_incomplete_card.dart`: more resilient tests for method "isProductIncomplete"
* `sample_product_data.json`: refreshed data
* `update_assets.sh`: added ingredients; localized to english categories and label tags

Author: monsieurtanuki

ci/update_assets.sh

@@ -9,7 +9,7 @@ SMOOTHIE_PATH="${REPO_DIR}/packages/smooth_app"
 
 echo "Updating perfect product"
 
-PERFECT_PRODUCT_URI="https://world.openfoodfacts.org/api/v2/product/example/?fields=product_name%2Cbrands%2Ccode%2Cnutrition_grade_fr%2Cimage_small_url%2Cimage_front_small_url%2Cimage_front_url%2Cimage_ingredients_url%2Cimage_nutrition_url%2Cimage_packaging_url%2Cselected_images%2Cquantity%2Cserving_size%2Cproduct_quantity%2Cnutriments%2Cnutrient_levels%2Cnutriment_energy_unit%2Cadditives_tags%2Cingredients_analysis_tags%2Clabels_tags%2Clabels_tags_fr%2Cenvironment_impact_level_tags%2Ccategories_tags_fr%2Clang%2Cattribute_groups%2Cstates_tags%2Cecoscore_data%2Cecoscore_grade%2Cecoscore_score%2Cenvironment_impact_level_tags%2Cknowledge_panels&lc=en&cc=US"
+PERFECT_PRODUCT_URI="https://world.openfoodfacts.org/api/v2/product/example/?fields=product_name%2Cbrands%2Ccode%2Cnutrition_grade_fr%2Cimage_small_url%2Cimage_front_small_url%2Cimage_front_url%2Cimage_ingredients_url%2Cimage_nutrition_url%2Cimage_packaging_url%2Cselected_images%2Cquantity%2Cserving_size%2Cproduct_quantity%2Cnutriments%2Cnutrient_levels%2Cnutriment_energy_unit%2Cadditives_tags%2Cingredients_analysis_tags%2Clabels_tags%2Clabels_tags_en%2Cenvironment_impact_level_tags%2Ccategories_tags_en%2Clang%2Cattribute_groups%2Cstates_tags%2Cecoscore_data%2Cecoscore_grade%2Cecoscore_score%2Cenvironment_impact_level_tags%2Cknowledge_panels%2Cingredients_text_languages&lc=en&cc=US"
 PERFECT_PRODUCT_PATH="${SMOOTHIE_PATH}/assets/onboarding/sample_product_data.json"
 curl $PERFECT_PRODUCT_URI | json_pp > $PERFECT_PRODUCT_PATH