fix: better code

widgets/contrib/brightness.lua

@@ -28,10 +28,7 @@ local function worker(args)
 
     function brightness.update()
         local f = assert(io.popen('cat /sys/class/backlight/' .. backlight .. "/brightness"))
-
-        brightness_now = {
-          level = f:read("*a")
-        }
+        brightness_now = f:read("*a")
         f:close()
 
         widget = brightness.widget