Many UI fixes.

modules/client_skins/skins/default/styles/labels.otui

@@ -22,3 +22,11 @@ MenuLabel < Label
 GameLabel < UILabel
   font: verdana-11px-antialised
   color: #bbbbbb
+
+FrameCounterLabel < Label
+  @onSetup: |
+    self.updateEvent = cycleEvent(function()
+      local text = 'FPS: ' .. g_app.getBackgroundPaneFps()
+      self:setText(text)
+    end, 1000)
+  @onDestroy: self.updateEvent:cancel()

modules/client_skins/skins/default/styles/miniwindow.otui

@@ -68,7 +68,6 @@ MiniWindow < UIMiniWindow
 
     $!on:
       width: 0
-      margin-right: 4
 
   ResizeBorder
     id: bottomResizeBorder
@@ -88,6 +87,7 @@ MiniWindowContents < ScrollablePanel
   margin-left: 3
   margin-bottom: 3
   margin-top: 22
+  margin-right: 1
   vertical-scrollbar: miniwindowScrollBar
 
 BorderlessGameWindow < UIWindow