Updater: Move progress next to progressbar

* The progress text can get very long, resulting in jumping marquee text
* In order to reduce the length, move the percentage out of the text
  and next to the progressbar
* The behavior can be observed e.g. on pro1 in german, where the button
  is also wider due to the german text

Change-Id: I0276182efed757c0929b31434edad9be548b841c