After usability testing confirmed, current behavior feels broken to users. Currently, the preview pops up both on hover and on click - so that if a user hovers and then clicks, nothing happens.
This ticket is to change this behavior. Hover should stay the same, but on click the page should jump down the clicked reference in the bottom (same behavior as if they had clicked the button 'Jump to reference').
Acceptance criteria:
[] Clicking on a reference reverts to its old behavior, jumps down to the footnote in the references section.
[] Clicking on the reference should still send the `clickedFootnote` event via through the [[ https://meta.wikimedia.org/wiki/Schema:ReferencePreviewsBaseline | ReferencePreviewsBaseline ]] topic.
[] Hover over a reference should open the popup, same as now.