too much -> too many redirects

remove imsg_borrow_str it's redundant due to ibuf_borrow_str()

send the reply code and meta in a single imsg

inline dispatch_imsg(); start to use some newer imsg api

save finger:// and gopher:// URLs to the history gemini is handled when the 2x reply is received. Gopher and Finger lack an equivalent, so call history_add() for them at EOF.

cache finger pages as well

removed -C/--colours flag

rework the history management It was a huge pile of spaghetti with useless utility functions and lots of code reaching into the "data structure" (if you can call it so) to do stuff. Instead, provide a "module" with a clean interface and noone reaching in the insides.

attempt to fix relative URLs Was broken in 2590504796 with the switch to the new APIs. The previous implementation accepted a parsed URL as base, while the new one takes a string and we pass NULL when we want to refer to the current URL...

use the new imsg_get_data() in a few places

fix handling of redirects with relative URLs

add default-protocol knob So that now one can decide to assume a finger:// or gopher:// protocol instead of gemini:// for load-url.

use iri_setport instead of reaching into the struct iri

convert the remainig uses of phos_uri to the iri API

move cwd to fs.c