Enable TurboSnap for Chromatic

[jeremywiebe]

Summary:

EDIT: We cannot enable TurboSnap for Perseus because we already use onlyStoryFiles (which restricts the set of stories to run, but is incompatible with the onlyChanged setting.

As a result of ☝️, this PR has been updated to document that onlyStoryFiles prevents use of onlyChanged.

This PR enables TurboSnap for the Perseus repo. TurboSnap is already enabled or the Perseus project on Chromatic.com, but we noticed it wasn't enabled for the Github Action that runs it.

Issue: "none"

Test plan:

Watch the actions on this build. We might have to land this and monitor future builds to see it working as I'm not sure if there'll be a proper baseline for TurboSnap to work off of.

[github-actions]

npm Snapshot: Published

Good news!! We've packaged up the latest commit from this PR (f87369d) and published it to npm. You
can install it using the tag PR1917.

Example:

yarn add @khanacademy/perseus@PR1917

If you are working in Khan Academy's webapp, you can run:

./dev/tools/bump_perseus_version.sh -t PR1917

[github-actions]

Size Change: 0 B

Total Size: 1.29 MB

ℹ️ View Unchanged

Filename	Size
packages/kas/dist/es/index.js	39 kB
packages/keypad-context/dist/es/index.js	760 B
packages/kmath/dist/es/index.js	4.27 kB
packages/math-input/dist/es/index.js	77.9 kB
packages/math-input/dist/es/strings.js	1.79 kB
packages/perseus-core/dist/es/index.js	1.48 kB
packages/perseus-editor/dist/es/index.js	697 kB
packages/perseus-linter/dist/es/index.js	22.2 kB
packages/perseus/dist/es/index.js	421 kB
packages/perseus/dist/es/strings.js	3.68 kB
packages/pure-markdown/dist/es/index.js	3.66 kB
packages/simple-markdown/dist/es/index.js	12.5 kB

_{compressed-size-action}

[khan-actions-bot]

Gerald

Required Reviewers

• @Khan/perseus for changes to .github/workflows/storybook.yml

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