React: fix useMemo (DevExpress#6870) (DevExpress#6872)

Author: vladaskorohodova

concepts/50 React Components/45 Optimize Performance/05 Do not pass inline functions and objects as component props/05 Object Literals.md

@@ -72,11 +72,11 @@ If you need to use objects, define them outside the component class or function
     // Correct: Object wrapped in `useMemo`
     function App() {
         // ...
-        const options = React.useMemo({
+        const options = React.useMemo(() => ({
             items: positions,
             searchEnabled: true,
-            value: "CEO"
-        }, []);
+            value: "CEO",
+        }), []);
 
         return (
             <!-- ... -->