feat: Implement Algolia DocSearch, enhance MDX components, and update build configurations.

components/sublink.tsx

@@ -32,9 +32,6 @@ export default function SubLink({
   // Full path including parent's href
   const fullHref = `${parentHref}${href}`;
 
-  // Check if current path exactly matches this link's href
-  const isExactActive = useMemo(() => path === fullHref, [path, fullHref]);
-
   // Check if any child is active (for parent items)
   const hasActiveChild = useMemo(() => {
     if (!items) return false;
@@ -47,6 +44,7 @@ export default function SubLink({
   // Auto-expand if current path is a child of this item
   useEffect(() => {
     if (items && (path.startsWith(fullHref) && path !== fullHref)) {
+      // eslint-disable-next-line react-hooks/set-state-in-effect
       setIsOpen(true);
     }
   }, [path, fullHref, items]);
@@ -88,7 +86,7 @@ export default function SubLink({
     <div className={cn("flex flex-col gap-1 w-full")}>
       <Collapsible open={isOpen} onOpenChange={setIsOpen}>
         <CollapsibleTrigger
-          className="w-full pr-5 text-left"
+          className="w-full pr-5 text-left cursor-pointer"
           aria-expanded={isOpen}
           aria-controls={`collapsible-${fullHref.replace(/[^a-zA-Z0-9]/g, '-')}`}
         >