Add a road to scores knowledge panel for empty attributes

[teolemon]

What

• [ ] Add a "road to scores" knowledge panel for empty attributes
  • [ ] Those panel should expose an id to trigger a local editing method, plus a translated string like "Edit ingredient to get the vegan status"

• [x] Add a "road to scores" knowledge panel for empty ultraprocessed attribute
• [ ] Add a "road to scores" knowledge panel for empty vegan attribute
• [ ] Add a "road to scores" knowledge panel for empty salt level attribute
• [ ] Add a "road to scores" knowledge panel for empty number of additives

  
  ### Related to 

• https://github.com/openfoodfacts/smooth-app/issues/1136

  Screenshot

  

[teolemon]

Actually, we already have a panel for ultraprocessed. It might be a good idea for other themes like vegan, salt level… thus this issue is more a tracker.

[teolemon]

Still an issue

[github-actions[bot]]

This issue has been open 90 days with no activity. Can you give it a little love by linking it to a parent issue, adding relevant labels and projets, creating a mockup if applicable, adding code pointers from https://github.com/openfoodfacts/openfoodfacts-server/blob/main/.github/labeler.yml, giving it a priority, editing the original issue to have a more comprehensive description… Thank you very much for your contribution to 🍊 Open Food Facts