fix: resolve reveal flickering, adjust grid header UI, update Guben image

components/blocks/CompetenceBentoGrid.tsx

@@ -86,10 +86,6 @@ export function CompetenceBentoGrid(props: CompetenceBentoGridProps) {
             <h2 className="text-primary font-bold tracking-wider uppercase text-sm mb-3">{badge}</h2>
             <h3 className="font-heading text-3xl md:text-5xl font-extrabold text-neutral-dark mb-4">{title}</h3>
           </div>
-          <Button href={ctaHref} variant="ghost" className="bg-primary/5 hover:bg-primary/10 mx-4 md:mx-0 whitespace-nowrap">
-            {ctaLabel}
-            <svg xmlns="http://www.w3.org/2000/svg" className="w-5 h-5 ml-2 transform group-hover:translate-x-1 transition-transform" viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="2.5" strokeLinecap="round" strokeLinejoin="round"><line x1="5" y1="12" x2="19" y2="12"></line><polyline points="12 5 19 12 12 19"></polyline></svg>
-          </Button>
         </div>
 
         <div className="grid grid-cols-1 md:grid-cols-3 lg:grid-cols-4 gap-4 auto-rows-[220px] px-4 md:px-0">