style: clean up statuswidget a bit

frontend/ui/widget/statuswidget.lua

@@ -1,7 +1,6 @@
 local InputContainer = require("ui/widget/container/inputcontainer")
 local FrameContainer = require("ui/widget/container/framecontainer")
 local CenterContainer = require("ui/widget/container/centercontainer")
-local RightContainer = require("ui/widget/container/rightcontainer")
 local LeftContainer = require("ui/widget/container/leftcontainer")
 local HorizontalGroup = require("ui/widget/horizontalgroup")
 local VerticalGroup = require("ui/widget/verticalgroup")
@@ -27,8 +26,6 @@ local Font = require("ui/font")
 local TimeVal = require("ui/timeval")
 local RenderText = require("ui/rendertext")
 
-local DocSettings = require("docsettings")
-local DEBUG = require("dbg")
 local util = require("util")
 local _ = require("gettext")
 
@@ -195,7 +192,7 @@ end
 function StatusWidget:addHeader(width, height, title)
     local group = HorizontalGroup:new{
         align = "center",
-        bordersize = 0
+        bordersize = 0,
     }
 
     local bold = false
@@ -360,7 +357,10 @@ function StatusWidget:setStar(num)
         self:saveSummary()
 
         for i = 1, num do
-            table.insert(stars_group, self.star:new { icon = "resources/icons/stats.star.full.png", callback = function() self:setStar(i) end })
+            table.insert(stars_group, self.star:new{
+                icon = "resources/icons/stats.star.full.png",
+                callback = function() self:setStar(i) end
+            })
         end
     else
         num = 0