Fix Problem while moving chromium to another window

It seems, that the xdotool has problems to move a maximized chromium. (Same goes for a chromium in kiosk mode.) I've had the problem, that both instances were displayed on the same screen instead of using both.

With this commit the chromium instances will start as normal not maximized windows. These will then be moved with the xdotool and then put (with the F11 key) into the full screen mode. The message that the window is now displayed full screen disappears after some seconds.