move find widget's match counter to a better spot

[weinand]

I like the match counter but I think it is placed in an unfortunate location:

It lives in the white text box but in contrast to all other elements in that box it takes no user input. In addition it makes the editable area even smaller and clutters the UI.

Could we find a better spot?

In addition the matcher counter is clipped on OS X:

CC @stevencl

[stevencl]

See this issue for a discussion about this: #1476

[weinand]

@stevencl great, that discussion covers my issues. I'm closing this one.