forward scrollConstraints prop from Excalidraw to App + fixed example app

packages/excalidraw/components/App.tsx

@@ -2967,6 +2967,7 @@ class App extends React.Component<AppProps, AppState> {
     if (this.props.scrollConstraints) {
       restoredAppState = {
         ...restoredAppState,
+        scrollConstraints: this.props.scrollConstraints,
         ...calculateConstrainedScrollCenter(this.state, restoredAppState),
       };
     } else if (initialData?.scrollToContent) {

packages/excalidraw/index.tsx

@@ -98,6 +98,7 @@ const ExcalidrawBase = (props: ExcalidrawProps) => {
     aiEnabled,
     showDeprecatedFonts,
     renderScrollbars,
+    scrollConstraints,
   } = props;
 
   const canvasActions = props.UIOptions?.canvasActions;
@@ -208,6 +209,7 @@ const ExcalidrawBase = (props: ExcalidrawProps) => {
           aiEnabled={aiEnabled !== false}
           showDeprecatedFonts={showDeprecatedFonts}
           renderScrollbars={renderScrollbars}
+          scrollConstraints={scrollConstraints}
         >
           {children}
         </App>