Fixes linkClickHandler not working in inner uses of BasicRichText.

[vitorpamplona]

linkClickHandler is not passing around when new BasicRichTexts are instantiated.

I am not sure if this is the correct way of solving it, but this applies the same LocalLinkClickHandler to the entire hierarchy of nodes, not just the first level. It seems better than passing it around to new instances of BasicRichTexts.

FYI, in the demo, the click worked but wasn't handled by the custom handler. It was using the default LocalUriHandler.current.

[halilozercan]

First of all thanks for finding this out. I believe there is a simpler solution to this problem that doesn't require us exposing a CompositionLocal.

[vitorpamplona]

Frankly, I am not sure a custom handler is needed. I have specific needs to intercept it, but maybe the average user is ok on having just the LocalUriHandler.current