chore: add visual regression tests

[JCofman]

Closes #213

Proposed Changes

Adds Storybook test-runner for running visual regression tests for each story.

Things to check

• Does the change need to be documented?
• Does any existing example code needs to be updated?
• Is the change properly tested?
• Is it helpful to provide another example to demonstrate the new feature?
• Are there other code lines that need to be modified?

[janivo]

Closing as they are really flaky and we would rather use snapshot test for now (see #713)

Nevertheless, big thanks @JCofman for your contribution! It will be relevant in the future for sure