lockhl: allow setting a default state

This allows e.g. to invert the warning for numlock

mybindings.lua

@@ -18,7 +18,7 @@ for s in screen do
 	table.insert(wibars, s.rightwibar)
 end
 local lockhl = require("lockhl")
-lockhl:setup(wibars, "#F2C740")
+lockhl:setup(wibars, "#F2C740", require("beautiful").bg_normal, { Num = true, Caps = false })
 
 local function mpdserver(host)
 	return function()
@@ -189,7 +189,7 @@ local myglobalkeys = awful.util.table.join(
 	awful.key({}, "XF86Display", mb.grabf({ keymap = displaymap, name = "Rotate" })),
 
 	awful.key({ modkey }, "e", binder.spawn("rofi -show emoji")),
-	awful.key({}, "Num_Lock", lockhl("Num")),
+	awful.key({}, "Num_Lock", lockhl("Num", true)),
 	awful.key({}, "Caps_Lock", lockhl("Caps"))
 
 	--}}}