docs: improve text contrast for hover and focus examples in light mode

Author: 87xie

apps/web/demos/focus/code.tsx

@@ -35,10 +35,10 @@ export function CodeContainer({ code }: { code: HighlightedCode }) {
         }}
         handlers={[focus]}
       />
-      <div className="p-2 mt-auto font-light text-center">
+      <div className="p-2 mt-auto font-light text-center text-white">
         You can also change the focus annotations on a rendered codeblock:
       </div>
-      <div className="flex justify-center gap-2 pb-4">
+      <div className="flex justify-center gap-2 pb-4 text-white">
         <button
           onClick={() => setFocused("lorem")}
           disabled={focused === "lorem"}

apps/web/demos/hover/page.tsx

@@ -16,7 +16,7 @@ export default function Page() {
 
 function HoverContainer(props: { children: React.ReactNode }) {
   return (
-    <div className="bg-zinc-900/80 px-2 rounded hover-container">
+    <div className="bg-zinc-900/80 px-2 rounded hover-container text-white">
       {props.children}
     </div>
   )