GUI: Added delay for page to load completely after page refresh

Changes:
    - Added delay for page to load completely for - Verify_Event_Under_Critical_Event_Logs_Section

Tested :-
    -  Successfully ran this from gui/gui_test/overview_menu/test_overview_menu.robot

Change-Id: Id49517a521d24783f580f9111db2eba029b8a6a7
Signed-off-by: rramyasr-in <rramyasr@in.ibm.com>
diff --git a/gui/gui_test/overview_menu/test_overview_menu.robot b/gui/gui_test/overview_menu/test_overview_menu.robot
index 6ce4fab..9b8570c 100644
--- a/gui/gui_test/overview_menu/test_overview_menu.robot
+++ b/gui/gui_test/overview_menu/test_overview_menu.robot
@@ -109,7 +109,7 @@
     Click Element  ${xpath_refresh_button}
     Generate Test Error Log
     Click Element  ${xpath_refresh_button}
-
+    Wait Until Element Is Not Visible   ${xpath_page_loading_progress_bar}  timeout=30
     ${log_count}=  Get Text  ${xpath_critical_logs_count}
     Should Be True  '${log_count}' == '${1}'