Do not make knowledge panels tappable if they contain only a title and no elements

[stephanegigandet]

We are going to display a list of ingredients with 1 knowledge panel for each ingredient. In a lot of cases, the panel will just be a title like "Sugar: 50%", and there won't be any content. In that case, we want to display the title, but without an arrow to the right, and without an option to tap it.

It will look something like that:

Here only the corn syrup has extra content and is expandable / tappable.

Currently on the app, panels with no content elements are tappable:

So if a panel has no "elements" or the size of the "elements" is 0, it should just display the element title.