Fix auto-scroll on result loading

[jairajs89]

• When already scrolled to the bottom of output and a you execute a command it adds the result view and then scrolls to the bottom. When when the result actually successfully loads and re-renders it can become a larger view but does not scroll further accordingly. This fixes that
• Single click on result brings it to focus, double click removes focus. Browsers generally use double click for text selection. This is now disabled during a double click of a result. Unfortunately the React MouseEvent.preventDefault doesn't actually prevent this so I manually removed the text selection if there is one