Spike: Shared dashboard visualisations (single stat) support for VSD datasource

Problem

We are in the process of integrating VSD into the shared dashboarding Schema-driven UI framework. VSD is currently built up by VSD specific visualisations (overview, comparison table, DORA performers chart) which all wrap the data fetching logic. This allows these specific visualisations to fetch data from the Optimize owned APIs. Other visualisations (Line chart, single stat, etc) rely on cube and an external CH database to fetch data, which means that we currently can't use the non VSD specific visualisations within VSD.

Tasks

• Explore expanding existing visualizations to query DORA, flow metrics, merge request and vulnerarbility count data. For example: query deployment frequency, visualize it as a single stat and add it to a dashboard, alongside the comparison table, then I think that goal is covered in the existing proposal