chore: Add 'aria-label' for header & sidebar components

Author: rschristian

src/components/header/index.jsx

@@ -51,7 +51,7 @@ function MainNav() {
 	};
 
 	return (
-		<nav class={style.nav}>
+		<nav class={style.nav} aria-label="Main navigation">
 			<NavLink
 				href="/"
 				clsx="home"

src/components/sidebar/sidebar-nav.jsx

@@ -16,7 +16,10 @@ export default function SidebarNav({ items, onClick }) {
 	const { path } = useRoute();
 
 	return (
-		<nav class={cx(style.toc, !(items && items.length > 1) && style.disabled)}>
+		<nav
+			class={cx(style.toc, !(items && items.length > 1) && style.disabled)}
+			aria-label="Sidebar Navigation"
+		>
 			{items.map(({ text, level, href, routes }) => {
 				if (!href) {
 					return (