Only allow editor script to target .gui (#67)

* Only allow editor script to target .gui

Disable .collection and .gui_script

* whitespace

monarch/editor-script/make_monarch.editor_script

@@ -68,7 +68,7 @@ function M.get_commands()
             },
             active = function(opts)
                 local path = editor.get(opts.selection, "path")
-                return ends_with(path, ".gui") or ends_with(path, ".collection") or ends_with(path, ".gui_script")
+                return ends_with(path, ".gui")
             end,
             run = function(opts)
                 create_files(opts.selection)