listview-popup stays open in chrome all the time, can't close on the close (x) button

It happens to us all the time. It's really annoying. It might be due to a bug in the bootstrap library, I'm not fully sure, but this one looks like it's the same? https://github.com/twbs/bootstrap/issues/10335

So I would like to add to layouts/vlayout/modules/Vtiger/resources/Vtiger.js

insert after line 384:

jQuery('.popover').css( "display", "none", "important");

This fixes the issue that the x button doesn't always work. Please let me know if I can submit this as a merge request.