updated example scripts to use darktable translation facilities

examples/moduleExample.lua

@@ -47,12 +47,10 @@ script_data.show = nil -- only required for libs since the destroy_method only h
 -- translation
 
 -- https://www.darktable.org/lua-api/index.html#darktable_gettext
-local gettext = dt.gettext
-
-gettext.bindtextdomain("moduleExample", dt.configuration.config_dir .. "/lua/locale/")
+local gettext = dt.gettext.gettext
 
 local function _(msgid)
-    return gettext.dgettext("moduleExample", msgid)
+    return gettext(msgid)
 end
 
 -- declare a local namespace and a couple of variables we'll need to install the module