docs: last minute polish for caterpie

[bennypowers]

• remove duplicated code from base layout
• move uxdot- elements to their own dir
• correct usage of rh-card variants in docs and demos
• format some source code in audio player
• format the README

What I did

1. spun off some general fixes and improvement from docs: samples #1350 into a separate PR

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Latest commit: 65656c4

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[github-actions]

Size Change: 0 B

Total Size: 223 kB

ℹ️ View Unchanged

Filename	Size
./elements/rh-accordion/rh-accordion-header.js	3.52 kB
./elements/rh-accordion/rh-accordion-panel.js	1.47 kB
./elements/rh-accordion/rh-accordion.js	3.52 kB
./elements/rh-alert/rh-alert.js	4.4 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	2.91 kB
./elements/rh-badge/rh-badge.js	1 kB
./elements/rh-blockquote/rh-blockquote.js	1.94 kB
./elements/rh-button/rh-button.js	4.38 kB
./elements/rh-card/rh-card.js	1.94 kB
./elements/rh-code-block/rh-code-block.js	1.25 kB
./elements/rh-cta/rh-cta.js	4.56 kB
./elements/rh-dialog/rh-dialog.js	4.79 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	1.35 kB
./elements/rh-footer/rh-footer-universal.js	4.07 kB
./elements/rh-footer/rh-footer.js	5.08 kB
./elements/rh-footer/rh-global-footer.js	250 B
./elements/rh-menu/rh-menu.js	1.25 kB
./elements/rh-navigation-secondary/rh-navigation-secondary-dropdown.js	2.57 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	572 B
./elements/rh-navigation-secondary/rh-navigation-secondary.js	5.39 kB
./elements/rh-navigation-secondary/test/fixtures.js	851 B
./elements/rh-pagination/rh-pagination.js	4.46 kB
./elements/rh-spinner/rh-spinner.js	1.61 kB
./elements/rh-stat/rh-stat.js	2.24 kB
./elements/rh-subnav/rh-subnav.js	2.83 kB
./elements/rh-surface/rh-surface.js	1.02 kB
./elements/rh-table/rh-sort-button.js	1.44 kB
./elements/rh-table/rh-table.js	2.9 kB
./elements/rh-tabs/rh-tab-panel.js	1.16 kB
./elements/rh-tabs/rh-tab.js	2.8 kB
./elements/rh-tabs/rh-tabs.js	4.54 kB
./elements/rh-tag/rh-tag.js	1.96 kB
./elements/rh-tile/rh-tile-group.js	1.76 kB
./elements/rh-tile/rh-tile.js	4.68 kB
./elements/rh-timestamp/rh-timestamp.js	976 B
./elements/rh-tooltip/rh-tooltip.js	2.24 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-demo/rh-context-demo.js	1.14 kB
./lib/elements/rh-context-picker/rh-context-picker.js	2.41 kB
./lib/functions.js	175 B
./lib/I18nController.js	1.38 kB
./lib/ScreenSizeController.js	856 B
./rhds.min.js	81.6 kB

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