Motivation
We want to find out how important it is for users to see more or all entered languages, to be able to better define default behavior etc.
In T205265 we already measure the time people spent on item pages.

Acceptance Criteria

• Measure how many percent of the people looking at an item page clicked on "more languages"
• Measure how many percent of those clicking on "more languages" also clicked on "all entered languages".
• Track, if the page already had "more languages" expanded or not, when measuring "all entered languages"