chore: Simplify getIsNestedInAppLayout

Author: georgylobko

src/app-layout/visual-refresh-toolbar/index.tsx

@@ -440,13 +440,12 @@ const AppLayoutVisualRefreshToolbar = React.forwardRef<AppLayoutProps.Ref, AppLa
      * Does not apply to iframe
      */
     const getIsNestedInAppLayout = (element: HTMLElement | null): boolean => {
-      let currentElement: Element | null = element?.parentElement ?? null;
+      const currentElement: Element | null = element?.parentElement ?? null;
 
-      while (currentElement) {
+      if (currentElement) {
         if (getComputedStyle(currentElement).getPropertyValue(globalVars.stickyVerticalTopOffset)) {
           return true;
         }
-        currentElement = currentElement.parentElement;
       }
 
       return false;