Having an issue in my app related to LRUD clearing `currentFocusNode`

[jfrux]

I'm unsure why this is causing an issue all of a sudden for my newest refactor but the only thing that fixed my app was to comment out these 3 lines.

Been bashing my head against my desk all day trying to figure out what was causing my app to lose focus. I'm sure it's something I could avoid by doing things differently but figured I'd still bring it to your attention in case that isn't getting into code coverage or something.

https://github.com/bbc/lrud/blob/a6faaaef40293f789f2d55f9e843bb7d7719472a/src/index.ts#L42

Let me know if there is anything I can test for you on my end.