Adjust spacing and padding for video rows on the homepage

Modify CSS classes in `client/src/components/netflix-grid.tsx` to reduce bottom margin of category rows and adjust padding for the scrollable video container.

Replit-Commit-Author: Agent
Replit-Commit-Session-Id: 8e9f2b36-ec9c-4acc-b19b-5304fa9790c5
Replit-Commit-Checkpoint-Type: full_checkpoint
Replit-Commit-Screenshot-Url: https://storage.googleapis.com/screenshot-production-us-central1/8cc42625-c1f5-4e43-99bd-77f2c4dedee2/8e9f2b36-ec9c-4acc-b19b-5304fa9790c5/fyyFszO

client/src/components/netflix-grid.tsx

@@ -236,18 +236,18 @@ function CategoryRow({ category, onVideoClick, hideScrollButtons = false }: Cate
 
   return (
     <div 
-      className="relative group mb-12"
+      className="relative group mb-6"
       onMouseLeave={() => setClickedVideoId(null)}
     >
       <h2 className="text-lg font-medium text-bunny-light mb-1 mx-2 leading-tight uppercase relative z-10">
         {category.title}
       </h2>
-      <div className="relative overflow-visible py-8">
+      <div className="relative overflow-visible py-2">
 
         {/* Scrollable video row - true edge to edge */}
         <div
           ref={scrollRef}
-          className="flex gap-4 overflow-x-auto scrollbar-hide pb-8 pl-4 pr-4"
+          className="flex gap-4 overflow-x-auto scrollbar-hide pb-2 pl-4 pr-4"
           style={{ 
             maxWidth: '960px', 
             margin: '0 auto',