Bring latest website fixes from 1-3-stable over to main (#813)

* Theme picker fixes and improvements to dark mode styling

* Tweak homepage features postamble

bridgetown-website/src/_pages/index.md

@@ -278,7 +278,7 @@ Bridgetown's philosophy is if we take the time to build what you'll actually nee
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-Then when you're ready, [bundled configurations](/docs/bundled-configurations) and [plugins](/plugins) can take you even farther. Add SEO/social graph support, news feeds, inlined SVGs, asset management integration, headless CMS integration, automated testing, Hotwire, TailwindCSS, Lit SSR + Hydration, and a whole lot more.
+Then when you're ready, [bundled configurations](/docs/bundled-configurations) and [plugins](/plugins) can take you even farther. Add SEO/social graph support, news feeds, inlined SVGs, asset management integration, headless CMS integration, automated testing, islands architecture, Turbo, Shoelace, Lit SSR + Hydration, and a whole lot more.
 {:style="text-align:center; margin-top:3rem; margin-left:auto; margin-right:auto; max-width:50em"}
 
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