Side menu that lists AION's own categories with game art on every page

Every page has a side menu listing the database sections in AION's own words, following the Broker's category tree, with each row led by art from the game. Your current page is marked once, and the branches you opened stay open as you move around and after you reload.

- Opening a page opens its parent categories, and leaving closes only the ones it opened for you. - Switching language keeps the same branches open. - On narrow screens the same tree opens from the header menu, and Escape closes it.

Saved branches and the single current marker already work. Next we are giving the remaining rows without art a fitting game icon, chosen for what the category means rather than a generic placeholder.