Update Storybook stories to use Component Story Format

Created by: gitstart-sourcegraph

Description

The Component Story Format is the recommended way to write stories in Storybook. The new format is easier to understand and it is also important that we update our existing stories to ensure we stay up to date with new features, and are able to follow future documentation.

Refs

• Sourcegraph issue
• Gitstart Ticket

App preview:

• Web

Check out the client app preview documentation to learn more.