autoexec.cfg: remove unneeded command
autoexec.cfg: crosshair changes
autoexec.cfg: always display net graph, r_dynamic 0 too
sync weechat conf
i3: use transmission-qt instead of transmission-remote-cli

Also remove unused amixer bindings.

transmission-remote-cli is very laggy when many torrents are being
displayed.
autoexec.cfg: enable first person tracers