chore: update import statement for react-toastify to use syntax

Author: arunjaindev

src/Shared/Services/ToastManager/toastManager.scss

@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 
-@import 'react-toastify/dist/ReactToastify.css';
+@use 'react-toastify/dist/ReactToastify.css';
 
 .Toastify {
     &__toast {