message: hide roster toggle bar in fullscreen mode
diff: @@ -373,6 +373,9 @@ body.jsxc-fullscreen {
  .jsxc-highlight .jsxc-window-bar {
  background-color: $window_bar_bg;
  }
  + .jsxc-roster-toggle {
  + display: none;
  + }
  }
  body.jsxc-fullscreen.jsxc-two-columns {
  