fix: reset scroll parents every time the method is called

Author: iOvergaard

packages/uui-popover-container/lib/uui-popover-container.element.ts

@@ -344,12 +344,12 @@ export class UUIPopoverContainerElement extends LitElement {
     document.removeEventListener('scroll', this.#initUpdate);
   }
 
-  #getScrollParents(): any {
-    if (!this.#targetElement) return;
-
+  #getScrollParents(): void {
     // Clear previous scroll parents to avoid duplicates
     this.#scrollParents = [];
 
+    if (!this.#targetElement) return;
+
     let style = getComputedStyle(this.#targetElement);
     if (style.position === 'fixed') {
       return;