split the logic into two functions: one to render the echoarea and one to rendere the minibuffer (when it's active).

and a bit of foreshadowing... :)

there's a close relationship between the echoarea and the minibuffer, but let's call it echoarea for now.

This would leave the last column white if !olivetti-mode and a background color for some body lines

Don't crash when there's a certificate mismatch and after saving the cert, before choosing to persist it, the page gets redirected; also, don't repeat the "Certificate mismatch" after the first yes, if there's a redirect. Now when the user accept a certificate, is treated as temporary saved for the whole session.

this fixes some infinite loops that may happen if the first line is hidden, or things happens. The idea is to move the line forward/backward until a non-hidden one is found.

don't consider restore_cursor as a public interface and while there rename it as restore_curs_x, as it describes better the behaviour of the function. I have to disable the buffer->force-redraw optimization, at least from now, given that cmd.c don't update curs_y anymore, and with that optimisation in place the cursor y position doesn't get updated upon redraw. Add a comment as a future note though.