Extend the knowledge panel API to add actions elements (e.g. add ingredients)

[stephanegigandet]

Almost all knowledge panels rely on some specific information about the product being available, and if the data is not available, we either do not display a panel, or display a message that we are missing data.

We can add in the knowledge panel structure a list of actions that the user can take. e.g. for the Nutri-Score panel, if we can't compute the Nutri-Score because we are missing the product category, or some nutrition facts, we can display a button to add the missing information.

[stephanegigandet]

Some panels already have data to edit some fields, but it may not be used yet:

e.g. ingredients panel:

"elements": [
    {
        "element_type": "text",
        "text_element": {
            "html": `[% panel.ingredients_text_with_allergens %]`,
            "lc": "[% panel.ingredients_text_lc %]",
            "language": "[% panel.ingredients_text_language %]",
            "edit_field_type": "ingredients_text",
            "edit_field_id": "ingredients_text_[% panel.ingredients_text_lc %]",
            "edit_field_value": `[% panel.ingredients_text %]`,
        },
    },

[github-actions]

This issue is stale because it has been open 90 days with no activity.