Scroll into view: do so instantly

Avoids a potential issue with low wait timeouts and
smooth scrolling.

Author: shs96c

webdriver-spec.html

@@ -4112,7 +4112,7 @@ <h2>Elements</h2>
  <dfn data-lt="scroll into view|scrolls into view">scrolled into view</dfn>
  by calling <a>scrollIntoView</a>
  with the <a><code>ScrollIntoViewOptions</code></a>
- <code>{block: "end", inline: "nearest"}</code>.
+ <code>{behavior: "instant", block: "end", inline: "nearest"}</code>.
 
 <p>An <a>element</a> is considered <dfn>editable</dfn>
  if one or more of the following conditions are met: