Fixing this involved adding a new mode to kitty where it handles
ctrl-c/z/q by sending signals to the tty foreground process group
instead of delegating to the kernel to do that. Since the pipe may be
full we have no way of knowing when the kernel will get around to
reading the signal byte. So send the signal ourselves.
Fixes#5271
Add more text roles and links.
Fix typos.
Adjust the default shortcut order in overview.
Notes on the impact of kitty-open.desktop on the default open apps.
Document KITTY_DEVELOP_FROM in glossary.
Add Python type hints to the watcher example.
Mention clone-in-kitty in launch --copy-env.
Fix remote control ls example does not work, by escaping the backslash.
Because, why the hell not, it's not like I have an actual life.
More seriously, terminal-wg (aka Bikeshedder's Anonymous) is
pushing for it so it's likely at least one poor application writer
will fall for their propaganda.
Fix changing of charset not taking effect immediately while parsing a
single block of bytes
Fix incorrect mapping of C0 control codes in some of the charsets