added fix for Page Should Contain Element not accepting lists

Author: yuriverweij

src/SeleniumLibrary/keywords/element.py

@@ -143,7 +143,7 @@ def page_should_contain(self, text: str, loglevel: str = "TRACE"):
     @keyword
     def page_should_contain_element(
         self,
-        locator: Union[WebElement, str],
+        locator: Union[WebElement, str, list[Union[WebElement,str]]],
         message: Optional[str] = None,
         loglevel: str = "TRACE",
         limit: Optional[int] = None,