How can I auto-close the collapsible on Prestige Theme?

[golden47]

Hi, 

I have a little issue with the collapsible on Prestige. When I click on the filter, it will open the options in the collapsible. But to close it I have to click on the button again or in another filter. 

Anyone knows what to add to make the collapsible close when we click outside ? I mean if we click on the side it will close automatically the collapsible options. 

Thanks a lot for your help,