Use driver.click instead of driver.js_click

Fixes #279.

driver.js_click has been unreliable for some users (to the point of
causing crashes for them) whereas driver.click has been much more
reliable.

lib/webdriver.py

@@ -149,7 +149,7 @@ def _get_driver(self) -> Driver:
         logger.debug("Loading Southwest home page (this may take a moment)")
         driver.open(BASE_URL)
         self._take_debug_screenshot(driver, "after_page_load.png")
-        driver.js_click("(//div[@data-qa='placement-link'])[2]")
+        driver.click("(//div[@data-qa='placement-link'])[2]")
         return driver
 
     def _headers_listener(self, data: JSON) -> None: