The idea is to handle better non-displayable pages (like images), and keeping the old page until the server replies is the first step. It also simplifies the memory management btw.

cherry-pick of commit ff79bf032c776716f71996eda953fe7b6ef8008b from the (abandoned?) branch feature/cache. The spec says (5.5.2 Unordered list items) > Lines beginning with "* " are unordered list items. (regarding the feature/cache branch, I think I want to drop that and start afresh, here's why the cherrypick and not a merge or a rebase)

landlock is applied only to the ui process to drop fs access and in the fs process to limit where telescope can read/write files. The network process is more difficult to landlock because while in theory it doesn't need *any* fs access, in practice it needs to read (at least) files inside /etc/ for DNS to work.

It's clearer to specify first the configuration file before dumping all the keys and available functions.

Point out that *by default* telescope uses XDG-style directories, but if ~/.telescope exists XDG is ignored. While here also use a shorter URL for the XDG spec and add it to the STANDARDS section of the manpage.