As more parts of Content and Section Translation are instrumented with the new schema, we want to start to visualize the translation activity generated by users. Ideally we'd like to have an end-to-end view where it is possible to understand which is the impact produced from those starting a translation from a given entry point (e.g., which percentage of people starting from the language selector are able to complete a translation that does not get reverted in a few days?).

This is an epic task to define a dashboard where this activity is represented. Sub-tasks will define parts of the funnel to represent such as entry points and others.

For the data in the funnel, we may want to provide similar filters to those available in the unified Superset dashboard (T310774) to focus on:

• Activity: create or expand articles.
• Platform: On desktop or on mobile.
• Language: For all languages or a specific one.
• Namespace: Content namespace or other (user drafts)