In Appearance > Widgets, by default default collapsed [frontend]

hi there

i was wondering if there is a way, to have all the fronted widgets closed by default, except the first one.

I’m running a woocommerce site with a lot of filters, causing long sidebar, so i wanted to have all the filters im using in widgets (im using for that the plugin WooCommerce Ajax Layered Nav Widget) closed, except the first widget, that should be opened (shop categories)

i was looking through some scripts, and i found an actually good solution at -> https://wordpress.org/support/topic/in-appearance-widgets-show-sidebar-default-collapsed?replies=3

but somehow i cant implement it to work on frontend.

any suggestion would be appreciated

Jan