viz type: demographics

goal

Create a population pyramid (as in "Fancy Graphs") that can be bound by beneficiary creation date, and make it filterable with tags.

stretch goal:

Using the metrics API endpoint, make it possible to create a population pyramid based on transaction_date (visit to the free shop / distribution event).

FE requirement:

• tooltips should work,
• styling should be as rest of Boxtribute,
• filter: beneficiary creation date, tags
• the visualization should be accessible on a route like v2-staging.boxtribute.org/bases/1/statistics
• dummy data is queried from the backend

BE:

• the data structure is returned in a data cube format
• there is a public graphql query