docs(progress-bar): documentation updates

[cdransf]

Description

Improving the accessibility documentation of components.

Related issue(s)

SWC-398

Author's checklist

• I have read the CONTRIBUTING and PULL_REQUESTS documents.
• I have reviewed at the Accessibility Practices for this feature, see: Aria Practices
• I have added automated tests to cover my changes.
• I have included a well-written changeset if my change needs to be published.
• I have included updated documentation if my change required it.

---

Reviewer's checklist

• Includes a Github Issue with appropriate flag or Jira ticket number without a link
• Includes thoughtfully written changeset if changes suggested include patch, minor, or major features
• Automated tests cover all use cases and follow best practices for writing
• Validated on all supported browsers
• All VRTs are approved before the author can update Golden Hash

Device review

• Did it pass in Desktop?
• Did it pass in (emulated) Mobile?
• Did it pass in (emulated) iPad?

[changeset-bot]

🦋 Changeset detected

Latest commit: cf28e9b

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

This PR includes changesets to release 84 packages

Name	Type
@spectrum-web-components/progress-bar	Patch
@spectrum-web-components/bundle	Patch
documentation	Patch
@spectrum-web-components/eslint-plugin	Patch
@spectrum-web-components/accordion	Patch
@spectrum-web-components/action-bar	Patch
@spectrum-web-components/action-button	Patch
@spectrum-web-components/action-group	Patch
@spectrum-web-components/action-menu	Patch
@spectrum-web-components/alert-banner	Patch
@spectrum-web-components/alert-dialog	Patch
@spectrum-web-components/asset	Patch
@spectrum-web-components/avatar	Patch
@spectrum-web-components/badge	Patch
@spectrum-web-components/breadcrumbs	Patch
@spectrum-web-components/button-group	Patch
@spectrum-web-components/button	Patch
@spectrum-web-components/card	Patch
@spectrum-web-components/checkbox	Patch
@spectrum-web-components/clear-button	Patch
@spectrum-web-components/close-button	Patch
@spectrum-web-components/coachmark	Patch
@spectrum-web-components/color-area	Patch
@spectrum-web-components/color-field	Patch
@spectrum-web-components/color-handle	Patch
@spectrum-web-components/color-loupe	Patch
@spectrum-web-components/color-slider	Patch
@spectrum-web-components/color-wheel	Patch
@spectrum-web-components/combobox	Patch
@spectrum-web-components/contextual-help	Patch
@spectrum-web-components/dialog	Patch
@spectrum-web-components/divider	Patch
@spectrum-web-components/dropzone	Patch
@spectrum-web-components/field-group	Patch
@spectrum-web-components/field-label	Patch
@spectrum-web-components/help-text	Patch
@spectrum-web-components/icon	Patch
@spectrum-web-components/icons-ui	Patch
@spectrum-web-components/icons-workflow	Patch
@spectrum-web-components/icons	Patch
@spectrum-web-components/iconset	Patch
@spectrum-web-components/illustrated-message	Patch
@spectrum-web-components/infield-button	Patch
@spectrum-web-components/link	Patch
@spectrum-web-components/menu	Patch
@spectrum-web-components/meter	Patch
@spectrum-web-components/modal	Patch
@spectrum-web-components/number-field	Patch
@spectrum-web-components/overlay	Patch
@spectrum-web-components/picker-button	Patch
@spectrum-web-components/picker	Patch
@spectrum-web-components/popover	Patch
@spectrum-web-components/progress-circle	Patch
@spectrum-web-components/radio	Patch
@spectrum-web-components/search	Patch
@spectrum-web-components/sidenav	Patch
@spectrum-web-components/slider	Patch
@spectrum-web-components/split-view	Patch
@spectrum-web-components/status-light	Patch
@spectrum-web-components/swatch	Patch
@spectrum-web-components/switch	Patch
@spectrum-web-components/table	Patch
@spectrum-web-components/tabs	Patch
@spectrum-web-components/tags	Patch
@spectrum-web-components/textfield	Patch
@spectrum-web-components/thumbnail	Patch
@spectrum-web-components/toast	Patch
@spectrum-web-components/tooltip	Patch
@spectrum-web-components/top-nav	Patch
@spectrum-web-components/tray	Patch
@spectrum-web-components/underlay	Patch
@spectrum-web-components/custom-vars-viewer	Patch
@spectrum-web-components/story-decorator	Patch
@spectrum-web-components/vrt-compare	Patch
@spectrum-web-components/base	Patch
@spectrum-web-components/grid	Patch
@spectrum-web-components/opacity-checkerboard	Patch
@spectrum-web-components/reactive-controllers	Patch
@spectrum-web-components/shared	Patch
@spectrum-web-components/styles	Patch
@spectrum-web-components/theme	Patch
@spectrum-web-components/truncated	Patch
example-project-rollup	Patch
example-project-webpack	Patch

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

[github-actions]

Branch preview

• Documentation Site
• Storybook

Review the following VRT differences

When a visual regression test fails (or has previously failed while working on this branch), its results can be found in the following URLs:

• Spectrum | Light | Medium | LTR
• Spectrum | Dark | Large | RTL
• Express | Light | Medium | LTR
• Express | Dark | Large | RTL
• Spectrum-two | Light | Medium | LTR
• Spectrum-two | Dark | Large | RTL
• High Contrast Mode | Medium | LTR

If the changes are expected, update the current_golden_images_cache hash in the circleci config to accept the new images. Instructions are included in that file.
If the changes are unexpected, you can investigate the cause of the differences and update the code accordingly.

[github-actions]

Tachometer results

Chrome

progress-bar permalink

basic-test

Version	Bytes	Avg Time	vs remote	vs branch
npm latest	454 kB	28.87ms - 29.65ms	-	faster ✔ 3% - 7% 0.80ms - 2.15ms
branch	432 kB	30.19ms - 31.29ms	slower ❌ 3% - 7% 0.80ms - 2.15ms	-

Firefox

progress-bar permalink

basic-test

Version	Bytes	Avg Time	vs remote	vs branch
npm latest	454 kB	57.33ms - 59.91ms	-	unsure 🔍 -5% - +0% -3.30ms - +0.06ms
branch	432 kB	59.16ms - 61.32ms	unsure 🔍 -0% - +6% -0.06ms - +3.30ms	-