Beta: move first paragraph in lead section before infobox(es)
In order for a paragraph to be moved the following conditions must be met:
- the lead section contains at least one infobox;
- the paragraph doesn't already appear before the first infobox if any in the DOM;
- the paragraph contains text content, e.g. no <p></p>;
- the paragraph doesn't contain coordinates, i.e. span#coordinates.
The feature is feature flagged and is enabled in beta only. The change
does not affect the mobile API.