styles: refactor codebase base style

src/app/layout.tsx

@@ -5,7 +5,6 @@ import { ThemeProvider } from '@/providers/ThemeProvider';
 import AppInitializer from '@/providers/AppInitializer';
 import QueryProvider from '@/providers/QueryProvider';
 import { Toaster } from '@/components/ui/sonner';
-import { BackgroundGradient } from '@/components/background-gradient';
 
 const geistSans = Geist({
   variable: '--font-geist-sans',
@@ -38,10 +37,7 @@ export default function RootLayout({
         >
           <QueryProvider>
             <AppInitializer>
-              <div className="relative min-h-screen isolate">
-                <BackgroundGradient />
-                {children}
-              </div>
+              {children}
               <Toaster position="top-center" />
             </AppInitializer>
           </QueryProvider>