Landing page has no "hamburger" menu in a mobile view

[sledges]

When the top main page (https://docs.sailfishos.org) is opened in a mobile view (or narrow desktop window), the header is hidden however no "hamburger" menu is shown to then reveal the search box.

The layout page has been designed differently to the rest of the pages, in a sense that it has only one pane/div, whilst documentation pages have two (one for the navigation bar on the left, and docs content on the right).

The fix would require to implement hamburger menu similar to how Just the Docs implemented it, but over one pane instead.