Persistence of the Open/Close State by "Cookie"

Is possible to add a support (like a "cookie") to maintain the state of the menu if the user changes the page? Example: If clicked to open the menu and changed the page, the menu on this page starts open.

Start by locating the JavaScript code that controls the menu's open and closed state, then review how that state is initialized when a page loads. The work is done when opening the menu on one page preserves an open menu after navigating to another page, and closing it preserves the closed state.

Written by the indexing model from the issue text.