Add more win10 waits

Author: ben-c-at-moz

modules/browser_object_panel_ui.py

@@ -136,6 +136,7 @@ def open_history_menu(self) -> BasePage:
         """
         self.open_panel_menu()
         self.element_visible("panel-main-view")
+        # Bug 1974080
         if self.sys_platform() == "Windows":
             sleep(2)
         self.click_on("panel-ui-history")
@@ -181,6 +182,9 @@ def open_bookmarks_panel_from_hamburger_menu(self) -> BasePage:
         Opens the Bookmarks panel from the Hamburger Menu
         """
         self.open_panel_menu()
+        # Bug 1974080
+        if self.sys_platform() == "Windows":
+            sleep(2)
         self.click_on("panel-ui-bookmarks")
         return self