Stacking window 'message' event listeners

[ExileofAranei]

Describe the bug

Hi, just noticed that Html plugin does not remove it's listener for message event, plugin's detach function is not called on fancybox destroy so window.removeEventListener is also never called. It tends to adding listeners for such event on each fancybox opening. Sure it won't cause serious performance issues, but it worths mentioning anyway

Tested on my websites with latest version, screenshot is captured on yours

Reproduction

Open fancybox multiple times and check listeners for message event

Additional context

No response

[fancyapps]

Hi, Thanks for the reporting!

[fancyapps]

This problem doesn't seem to occur in v6, if you do encounter any problems, please let me know.