docs(avatar): update sizing documentation

[marissahuysentruyt]

Description

This PR updates the sizing documentation for avatar. There was an older table that listed the available sizes, but only for S1 avatars. The S2 avatar has more sizes available, so the Sizing story has now been updated to reflect that.

No changeset or VRTs needed since this was a documentation update only.

How and where has this been tested?

Please tag yourself on the tests you've marked complete to confirm the tests have been run by someone other than the author.

Validation steps

• Pull down the branch or visit the deploy preview. [@castastrophe]
• Visit the avatar documentation page. [@castastrophe]
• Verify the Sizing documentation reflects the new S2 avatar sizes, with a range from 50 to 1500 (as opposed to the S1 50 to 700 range). The documentation should be free of grammar mistakes and be understandable/clear. The list of sizes has been removed. [@castastrophe]

Regression testing

Validate:

1. The documentation pages for at least two other components are still loading, including:

• The pages render correctly, are accessible, and are responsive.

2. If components have been modified, VRTs have been run on this branch:

• VRTs have been run and looked at.
• Any VRT changes have been accepted (by reviewer and/or PR author), or there are no changes.

Screenshots

To-do list

• I have read the contribution guidelines.
• I have updated relevant storybook stories and templates.
• If my change impacts documentation, I have updated the documentation accordingly.
• ✨ This pull request is ready to merge. ✨

[changeset-bot]

⚠️ No Changeset found

Latest commit: 369d01c

Merging this PR will not cause a version bump for any packages. If these changes should not result in a new version, you're good to go. If these changes should result in a version bump, you need to add a changeset.

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File metrics

Summary

Total size: 1.73 MB^*

🎉 No changes detected in any packages

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* Results are not gzipped or minified.
* An ASCII character in UTF-8 is 8 bits or 1 byte.

[marissahuysentruyt]

I elected to remove this list. At first I was just going to add the new S2 sizes, but there's 8 additional sizes, that list got really long, and we're displaying all of the sizes in the canvas. So I worked the sentence here into the first paragraph and updated the range that's referenced instead.