Adjust layout to improve content visibility on the homepage

Update horizontal scrolling and padding in the category row component, and adjust homepage container padding for better content presentation.

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/M6U47Dp

client/src/pages/home.tsx

@@ -74,10 +74,10 @@ export default function Home() {
   }, [searchQuery, refetch]);
 
   return (
-    <div className="has-fixed-header lg:mx-[38px]" style={{minHeight: '100vh', background: 'linear-gradient(135deg, hsl(250, 50%, 15%) 0%, hsl(240, 30%, 25%) 100%)', color: 'white'}}>
+    <div className="has-fixed-header" style={{minHeight: '100vh', background: 'linear-gradient(135deg, hsl(250, 50%, 15%) 0%, hsl(240, 30%, 25%) 100%)', color: 'white'}}>
       {/* STICKY HEADER */}
       <div className="header-sticky bg-transparent overflow-hidden">
-        <div className="max-w-6xl mx-auto px-4 py-4">
+        <div className="pl-4 pr-16 py-4">
           <div className="flex items-center justify-between">
             {/* Left side - Logo */}
             <div className="flex items-center space-x-4">