Storyshots Migration

[kylegach]

Related discussion: #22520 (comment)

With the release of the test runner package, the famous testing package storyshots is now mostly deprecated and will not receive any changes / improvements.

In our documentation, we're still mentioning how to enable snapshot testing with the said package, and we're at a point where we should start consolidating all the testing patterns around the test runner. For reference, here's the example response that the Storybook team sent out while triaging storyshots issues.

What needs to happen:

• Update the documentation here to be a migration guide to snapshot testing with the test runner as opposed to a how-to guide for the storyshots package.

[joriswitteman]

Will this include a way to replace the different controls settings variations coverage that StoryShots offered?

[norcino]

@kylegach the fact that storyshot will be deprecated soon should be evident on the website, this will help point new users in the right, long term, direction.