fix: dynamically import Modal component

fixes error "document is not defined" if the user decides to display a modal at the beginning (for ads, promotions, etc...)

components/common/Layout/Layout.tsx

@@ -42,6 +42,11 @@ const FeatureBar = dynamic(
   dynamicProps
 )
 
+const Modal = dynamic(
+  () => import('@components/interface/Modal'), 
+  {...dynamicProps, ssr: false}
+)
+
 interface Props {
   pageProps: {
     pages?: Page[]