refactor: standardize background color to #121212

- Replaced inconsistent gray-900 and #171717 background colors with unified #121212 across all pages
- Removed unused imports from multiple component files
- Cleaned up trailing spaces in className attributes

src/pages/storage/CallToAction.tsx

@@ -5,7 +5,7 @@ import { Button } from "@/components/Button";
 
 export function CallToAction() {
   return (
-    <section className="relative overflow-hidden bg-gray-900">
+    <section className="relative overflow-hidden bg-[#121212] ">
       {/* ✅ Top horizontal line with spacing */}
       <div className="max-w-7xl  mx-auto py-6 border border-t-0 border-b-0 border-gray-800"></div>
       <div className="w-full border-t border-l border-r border-gray-800" />