Bug 1080169 - Update test_sms_with_attachments.py to correlate with the ...

...manual test


As the steps are different I added a new test instead of changing the existing one
Can you try to replace the sleep with a condition, maybe: <code>self.wait_for_condition(lambda m: m.find_element(*self._actions_menu_locator).location['y'] == 0)</code>