Pinch to zoom causes UI confusion

[lumaxis]

• VSCode Version: 1.3.0-insiders 798b41a
• OS Version: 10.11.5

1. Use a Mac's trackpad and the pinch to zoom gesture within a Code window
2. The content's size is heavily zoomed in or out
3. There's no obvious way to reset the zoom level

Anything I'm missing about this? If not, can we improve this or disable pinch to zoom completely?

[bpasero]

Yeah, I raised similar issues.

[alexdima]

Let's track in #8282