Code Insights: Add backend insight story card (!23489) · Merge requests · Administrator / sourcegraph · GitLab

Administrator requested to merge code-insights/backend-insight-storybook-card into main Aug 03, 2021

Created by: vovakulikov

Closes part of https://github.com/sourcegraph/sourcegraph/issues/23189

Context

This PR does preparation work for the drill-down filters panel at the backend insight card

Change the gql method API in order to be able to mock the fetch method in storybook stories
Adds the backend card storybook story
Fix global styles usage (now all global styles must be included via one single insight styles file at the top level of /insights dir)