USWDS-Site - Accordion: Add accordion color settings

[mejiaj]

Summary

Documenting new accordion color settings & updating changelog entries.

Related issue

Part of uswds/uswds#5269.

Preview link

Preview link:

• Accordion settings
• Accordion changelog
• Settings page entries
• Settings changelog

Problem statement

Settings and changelog entries need to be updated for accuracy.

Solution

1. Add entries to _data/settings/components/accordion.yml
2. Update changelog for both settings & component

Testing and review

Accordion component

1. Visit Accordion component
2. Settings table should include two new background color settings
3. There should be a new changelog entry

Settings page

1. Visit Settings page
2. New accordion settings should be documented
3. Go to changelog section at the bottom of the page
4. There should be a new changelog entry for new settings

[amyleadem]

Looking good, @mejiaj ! I added comments for a couple possible changes. Let me know if you have questions:

Checks performed:

• Confirmed the updated settings match the updates from USWDS - Accordion: Add color settings uswds#5269
• Checked for grammar and spelling

[mahoneycm]

Looking good on my end!

I agree with @amyleadem comments to add the setting names to the change log as well as the adjustments to the setting's descriptions for improved clarity.

No further adjustments!

• Checked for changelog items on Accordion and Settings page
• Checked for setting's descriptions on Accordion page
• Checked for new accordion settings on Settings page

[amyleadem]

Looks good! I just had one question related to affectsSettings.

[amyleadem]

Whoops, one more note: thinking it would be a good idea to also add a changelog for the checkbox component since the calculation for determining the check icon color has been updated with this PR as well.
Removing this comment since the PR no longer affects the radio or checkbox components.