in order to do so, we also have to export some internal variables from ui (the width and height of the window). Not the best possible outcome, but are used only in recompute_help, and can be dropped later. Also, move wrap_page to wrap.c.

don't need to evtimer_add to initialize the event.

Another useful warning got thanks to -pedantic.

You were a good function. Slow and avoidable actually, but a good function indeed.

don't load all the tabs when starting up, only the current one. Defer the loading of the others when switching to them.

while there also simplify a bit the handling of the pair for tabs/current-tab.