Fix README typos, remove next-specific data attributes for components

[randimays]

Description

Removes data-next-component attributes from components that have them as we won't be needing this data in the markup. This also includes updates to the design system breakpoints that have been done in content-build and vets-website. Some of this code predates those changes so I applied them in this PR. There should be no functionality changes; it's only a name change.

Ticket

Relates to department-of-veterans-affairs/va.gov-cms#19386

Developer Task

Tasks

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1. PR submitted against the main branch of next-build.
2. Link to the issue that this PR addresses (if applicable).
3. Define all changes in your PR and note any changes that could potentially be breaking changes.
4. Alerted the #accelerated-publishing Slack channel to request a PR review.
5. You understand that once approved, you are responsible for merging your changes into main. (Note that changes to main will move automatically into production.)

[randimays]

Not used in this code block so I removed it.

[eselkin]

@randimays Should the package.json be brought up to what it is in vets-website if using the current breakpoints stuff?

    "@department-of-veterans-affairs/component-library": "^47.2.0",
    "@department-of-veterans-affairs/css-library": "^0.12.2",
    "@department-of-veterans-affairs/formation": "11.0.26",

Or were they functional in the current ones?

[randimays]

@eselkin Great callout. I just double checked and they both work, but notably the now-deprecated version isn't applying correctly so we are benefiting from this either way. Screenshots below were taken at 1201px browser width, which is the DST breakpoint for large-screen / desktop-lg

Before

After

[randimays]

@timcosgrove Updated the changes to remove the data-next-components instead; I agree that we can rely on browser extensions to identify components and this will just clutter the markup 👍🏻 This is ready for your review again

[randimays]

@timcosgrove Bumping for your review when you get a chance please!

[randimays]

@timcosgrove Bumping for your review please :)