fix(tests): Set PAUSE_TIME to 0

It's very useful to be able to make tests run more slowly so you
can watch them, but they should run as fast as possible by default.

This cuts total test execution time on a 2021 MacBook Pro M1
approximately in half, from 42s to 22s.

Author: cpcallen

test/webdriverio/test/test_setup.ts

@@ -27,10 +27,22 @@ import {fileURLToPath} from 'url';
 let driver: webdriverio.Browser | null = null;
 
 /**
- * The default amount of time to wait during a test. Increase this to make
- * tests easier to watch; decrease it to make tests run faster.
+ * The default amount of time to wait during a test, in ms.  Increase
+ * this to make tests easier to watch; decrease it to make tests run
+ * faster.
+ *
+ * The _test.js files in this directory are set up to disable timeouts
+ * automatically when PAUSE_TIME is set to a nonzero value via
+ *
+ *     if (PAUSE_TIME) this.timeout(0);
+ *
+ * at the top of each suite.
+ *
+ * Tests should pass reliably even with this set to zero; use one of
+ * the browser.wait* functions if you need your test to wait for
+ * something to happen after sending input.
  */
-export const PAUSE_TIME = 50;
+export const PAUSE_TIME = 0;
 
 /**
  * Start up WebdriverIO and load the test page. This should only be