react-color usage with contentEditable
Hey,

During development I've found out that selection made on div with contentEditable:
```
<div contentEditable />
```
Is cleared off after trying to pick some color through `SketchPicker` component.
Although after a bit of research also found out that it's likely to be a problem in common components.

Here's the demo:
https://codesandbox.io/s/awesome-fog-16nyz?file=/src/App.js

I will be happy to fix this issue if contributions are open. 🤗 
Please let me know and I will prepare the PR.