Adding roadmap page and aligning shared styles with release notes

[markcaron]

What I did

1. Added Roadmap page under About
2. Moved shared styles out of Release Notes into Styles.scss
3. Cleaned up Roadmap and Release Notes feedback sections

[changeset-bot]

⚠️ No Changeset found

Latest commit: fc3c113

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.

This PR includes no changesets

When changesets are added to this PR, you'll see the packages that this PR includes changesets for and the associated semver types

Click here to learn what changesets are, and how to add one.

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

[netlify]

✅ Deploy Preview for red-hat-design-system ready!

Name	Link
🔨 Latest commit	fc3c113
🔍 Latest deploy log	https://app.netlify.com/sites/red-hat-design-system/deploys/650dee92ecb9420008fd0132
😎 Deploy Preview	https://deploy-preview-1234--red-hat-design-system.netlify.app
📱 Preview on mobile	Toggle QR Code... Use your smartphone camera to open QR code link.

---

To edit notification comments on pull requests, go to your Netlify site configuration.

[github-actions]

Size Change: 0 B

Total Size: 189 kB

ℹ️ View Unchanged

Filename	Size
./elements/rh-accordion/rh-accordion-header.js	1.98 kB
./elements/rh-accordion/rh-accordion-panel.js	1.24 kB
./elements/rh-accordion/rh-accordion.js	1.17 kB
./elements/rh-alert/rh-alert.js	4.24 kB
./elements/rh-audio-player/rh-audio-player-about.js	1.85 kB
./elements/rh-audio-player/rh-audio-player-scrolling-text-overflow.js	1.51 kB
./elements/rh-audio-player/rh-audio-player-subscribe.js	1.43 kB
./elements/rh-audio-player/rh-audio-player.js	14.2 kB
./elements/rh-audio-player/rh-cue.js	2 kB
./elements/rh-audio-player/rh-transcript.js	2.94 kB
./elements/rh-avatar/random-pattern-controller.js	2.72 kB
./elements/rh-avatar/rh-avatar.js	2.88 kB
./elements/rh-badge/rh-badge.js	862 B
./elements/rh-blockquote/rh-blockquote.js	1.96 kB
./elements/rh-button/rh-button.js	3.77 kB
./elements/rh-card/rh-card.js	1.88 kB
./elements/rh-code-block/rh-code-block.js	1.18 kB
./elements/rh-context-provider/rh-context-provider.js	185 B
./elements/rh-cta/rh-cta.js	4.04 kB
./elements/rh-dialog/rh-dialog.js	1.6 kB
./elements/rh-dialog/yt-api.js	614 B
./elements/rh-footer/rh-footer-block.js	765 B
./elements/rh-footer/rh-footer-copyright.js	362 B
./elements/rh-footer/rh-footer-links.js	1.18 kB
./elements/rh-footer/rh-footer-social-link.js	960 B
./elements/rh-footer/rh-footer-universal.js	4.07 kB
./elements/rh-footer/rh-footer.js	5.07 kB
./elements/rh-footer/rh-global-footer.js	250 B
./elements/rh-menu/rh-menu.js	1.02 kB
./elements/rh-navigation-secondary/rh-navigation-secondary-dropdown.js	2.31 kB
./elements/rh-navigation-secondary/rh-navigation-secondary-menu-section.js	1.46 kB
./elements/rh-navigation-secondary/rh-navigation-secondary-menu.js	1.9 kB
./elements/rh-navigation-secondary/rh-navigation-secondary-overlay.js	571 B
./elements/rh-navigation-secondary/rh-navigation-secondary.js	4.76 kB
./elements/rh-navigation-secondary/test/fixtures.js	851 B
./elements/rh-pagination/rh-pagination.js	4.45 kB
./elements/rh-spinner/rh-spinner.js	1.51 kB
./elements/rh-stat/rh-stat.js	2.24 kB
./elements/rh-subnav/rh-subnav.js	2.84 kB
./elements/rh-tabs/rh-tab-panel.js	789 B
./elements/rh-tabs/rh-tab.js	1.81 kB
./elements/rh-tabs/rh-tabs.js	1.86 kB
./elements/rh-tag/rh-tag.js	1.73 kB
./elements/rh-timestamp/rh-timestamp.js	974 B
./elements/rh-tooltip/rh-tooltip.js	1.07 kB
./lib/context/color/consumer.js	1.15 kB
./lib/context/color/controller.js	1.11 kB
./lib/context/color/provider.js	1.99 kB
./lib/context/event.js	598 B
./lib/context/headings/consumer.js	711 B
./lib/context/headings/controller.js	1.14 kB
./lib/context/headings/provider.js	1.23 kB
./lib/DirController.js	569 B
./lib/elements/rh-context-picker/rh-context-picker.js	1.16 kB
./lib/elements/rh-context-provider/rh-context-provider.js	746 B
./lib/functions.js	175 B
./lib/I18nController.js	1.38 kB
./lib/ScreenSizeController.js	856 B
./rhds.min.js	77.4 kB

_{compressed-size-action}

[hellogreg]

Don't know if you're okay with having the external Feedback link icon orphaned in the widest Chrome/Safari/Firefox desktop view at normal (100%) text zoom:

[hellogreg]

The page has two elements with id="roadmap":

[hellogreg]

The "release notes" link points right back to this roadmap page:

[hellogreg]

lgtm!

[markcaron]

@hellogreg @zeroedin fixed. updated.