UI fixes (colors, favicon) and codebase comment cleanup

components/sections/PostsGrid.tsx

@@ -47,15 +47,12 @@ export function PostsGrid({ posts, featuredPost }: PostsGridProps) {
 
   return (
     <div className="py-12">
-      {/* Artykuł Wyróżniony (tylko na 1 stronie) */}
       {featuredPost && currentPage === 1 && (
         <div className="mb-16">
           <h2 className="text-2xl font-bold text-primary font-heading mb-8">Artykuł wyróżniony</h2>
           <FeaturedPost post={featuredPost} />
         </div>
       )}
-
-      {/* Filtry */}
       <div className="flex flex-wrap items-center gap-3 mb-12">
         {categories.map((category) => (
           <button
@@ -72,8 +69,6 @@ export function PostsGrid({ posts, featuredPost }: PostsGridProps) {
           </button>
         ))}
       </div>
-
-      {/* Siatka Artykułów */}
       <div className="grid grid-cols-1 md:grid-cols-2 lg:grid-cols-3 gap-8">
         {visiblePosts.map((post) => {
           const dateObj = new Date(post.date);
@@ -136,8 +131,6 @@ export function PostsGrid({ posts, featuredPost }: PostsGridProps) {
           <p className="text-lg text-text-muted font-medium">Brak artykułów w tej kategorii.</p>
         </div>
       )}
-
-      {/* Paginacja */}
       {totalPages > 1 && (
         <div className="mt-12 flex flex-wrap justify-center items-center gap-2">
           <button