Fixed the heading layout for dark theme

Author: SHASHI9705

components/Headlines.tsx

@@ -67,7 +67,7 @@ const Headline = ({
     id: propAttributes?.slug || slug,
     className: cn(
       'group cursor-pointer hover:underline',
-      isActive && 'text-startBlue',
+      isActive && 'text-startBlue dark:text-startBlue',
       propAttributes?.className,
     ),
     onClick: handleHeadingClick,