feat(carousel): updated chevron sizes

[ArtBlue]

Fixes #2261

• This PR contains CSS changes
• This PR does not contain CSS changes

Description

Simply replaced the 12px chevron icon with the 16px icon in docs and storybook.

Screenshots

Before

After

Checklist

• I verify the build is in a non-broken state
• I verify all changes are within scope of the linked issue

• I regenerated all CSS files under dist folder
• I tested the UI in all supported browsers
• I did a visual regression check of the components impacted by doing a Percy build and approved the build
• I tested the UI in dark mode and RTL mode
• I added/updated/removed Storybook coverage as appropriate

[changeset-bot]

🦋 Changeset detected

Latest commit: a17c4c6

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

Name	Type
@ebay/skin	Minor

Not sure what this means? Click here to learn what changesets are.

Click here if you're a maintainer who wants to add another changeset to this PR

[agliga]

LGTM, can we add a changeset and then its good to merge