BREAKING - Replaces custom event name

I got this namespace wrong; typically the namespace is listed after the
regular event. Of course this doesn't really matter, but seems like
something to change before the major version.

Before I can publish this, this will request a major version change,
which isn't a big deal.

docs/examples.iife.js

@@ -381,11 +381,11 @@
       },
 
       open: function open() {
-        var event = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : createEmptyCustomEvent('yamodal.open');
+        var event = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : createEmptyCustomEvent('open.yamodal');
         return onTriggerOpen(event);
       },
       close: function close() {
-        var event = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : createEmptyCustomEvent('yamodal.close');
+        var event = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : createEmptyCustomEvent('close.yamodal');
         return onTriggerClose(event);
       },
       isOpen: function isOpen() {

src/yamodal.js

@@ -210,10 +210,10 @@ const initializeModalListener = ({
 		get modal_node() {
 			return modal_node;
 		},
-		open(event = createEmptyCustomEvent('yamodal.open')) {
+		open(event = createEmptyCustomEvent('open.yamodal')) {
 			return onTriggerOpen(event);
 		},
-		close(event = createEmptyCustomEvent('yamodal.close')) {
+		close(event = createEmptyCustomEvent('close.yamodal')) {
 			return onTriggerClose(event);
 		},
 		isOpen() {