chore: anchor updates for menu components

Author: tugcekucukoglu

packages/@primereact/headless/src/popover/usePopover.ts

@@ -56,10 +56,19 @@ export const usePopover = withHeadless({
         const setAnchorFallbackRef = React.useCallback((node: HTMLElement | null) => {
             const element = toElement(node) ?? null;
 
-            if (!element || element === anchorFallbackRef.current) return;
+            if (element === anchorFallbackRef.current) return;
 
             anchorFallbackRef.current = element;
 
+            if (!element) {
+                if (anchorRef.current && !anchorRef.current.isConnected) {
+                    anchorRef.current = null;
+                    setAnchorElement(null);
+                }
+
+                return;
+            }
+
             if (!anchorRef.current) {
                 anchorRef.current = element;
                 setAnchorElement(element);