chore: App theme added

src/main.tsx

@@ -4,11 +4,15 @@ import './index.css';
 import './lib/i18n';
 import App from './App';
 import { LanguageProvider } from './providers/LanguageProvider';
+import { createTheme, ThemeProvider } from '@mui/material';
+import { AppThemeProvider } from './providers/ThemeProvider';
 
 createRoot(document.getElementById('root')!).render(
   <StrictMode>
     <LanguageProvider>
-      <App />
+      <AppThemeProvider>
+        <App />
+      </AppThemeProvider>
     </LanguageProvider>
   </StrictMode>,
 );