Make it possible to event.stopPropagation() in onClickOutside

[EugenDueck]

Problem

When I click outside of the tippy content, onClickOutside gets called, but also other click handlers, unrelated to the Tippy component, get executed.

Codesandbox to reproduce the issue:

1. Click "Show Tippy"
2. Click "Click to increase count" -> this increases the counter despite e.stopPropagation()

Solution

This could e.g. be made possible by laying a (transparent) div over all content.

[zhandosainabek]

The same issue here :)