wait for export job details GModal to be hidden instead of absent

With dialogs (as opposed to the `BModal` we had in the past), they do not become absent and instead stay hidden in the DOM. Hence, I change the wait for absent to absent or hidden.

Author: ahmedhamidawan

test/integration_selenium/test_history_export_legacy.py

@@ -37,7 +37,7 @@ def test_history_export(self):
         history_export.show_job_link.wait_for_and_click()
         history_export.job_table.wait_for_present()
         history_export.job_table_ok.wait_for_and_click()
-        history_export.job_table.wait_for_absent()
+        history_export.job_table.wait_for_absent_or_hidden()
 
         self.click_history_option_export_to_file()