Examples: Create TrackballControls with renderer.domElement

[Mugen87]

This PR ensures that TrackballControls is used with the renderer' canvas instead of document. Otherwise the following error occurs in Chrome when using the mouse wheel:

[Intervention] Unable to preventDefault inside passive event listener due to target being treated as passive.

https://threejs.org/examples/misc_controls_trackball

Certain examples using OrbitControls also need this fix. I wanted to make this PR not too big though. And because we might want to consider to make the second argument of TrackballControls's ctor mandatory.

[Mugen87]

More context: https://discourse.threejs.org/t/browser-error-on-changing-the-zoom-level/7207/2

[mrdoob]

Thanks!

[mrdoob]

I'll cherry pick to gh-pages. I noticed these warnings today too.