Update the search results even when using Normal Mode editing commands

Particularly pasting, but also, deleting and other editing operations that don't go into and leave insert mode. For now if i use `x,p,d<motion>` it gets (slightly) annoying that I have to do `i<esc>` to refresh

I think you could try use the `TextChangedPost` autocmd for this? Perhaps with a little bit of debouncing