Fix failing Nightwatch tests on CI (#70)

* Attempt to fix failing Nightwatch tests on CI

* Keep original parameter order

Author: mxr576

config.selenium-standalone-chrome.yaml

@@ -20,7 +20,8 @@ web_environment:
   - DRUPAL_TEST_WEBDRIVER_PORT=4444
   - DRUPAL_TEST_WEBDRIVER_PATH_PREFIX=/wd/hub
   - DRUPAL_TEST_WEBDRIVER_W3C=true
-  - DRUPAL_TEST_WEBDRIVER_CHROME_ARGS=--disable-dev-shm-usage --disable-gpu --headless --dns-prefetch-disable
+  # --window-size=1920,1080 is needed to fix random timeouts in tests. See: https://community.latenode.com/t/selenium-webdriver-timeout-issue-when-running-in-headless-mode-with-c/21952/4
+  - DRUPAL_TEST_WEBDRIVER_CHROME_ARGS=--disable-dev-shm-usage --disable-gpu --headless --dns-prefetch-disable --window-size=1920,1080
   - DRUPAL_TEST_CHROMEDRIVER_AUTOSTART=false
   - DRUPAL_NIGHTWATCH_SEARCH_DIRECTORY=../
   - DRUPAL_NIGHTWATCH_IGNORE_DIRECTORIES=node_modules,vendor,.*,sites/*/files,sites/*/private,sites/simpletest