Add missing variable definitions for DOM manipulation in WebappInternal class

Author: vinioliveira-totvs

tir/technologies/webapp_internal.py

@@ -766,6 +766,8 @@ def close_ballon_last_login(self):
         Closes the balloon notification about the last login, if present.
         """
 
+        bs4_close_button = lambda: next(iter(self.get_current_DOM().select('[style*=ballon_close]')), None)
+
         if bs4_close_button():
             endtime = time.time() + self.config.time_out
             while time.time() < endtime and self.element_is_displayed(bs4_close_button()):
@@ -5533,6 +5535,8 @@ def displayed_label_on_screen(self, label, selector):
         """
         element_is_displayed = False
 
+        selector_list = self.get_container_selector(selector)
+
         filtered_label = self.filter_label_by_selector(label=label, selector=selector_list)
 
         if filtered_label: