dircolors: Actually define TERM linux

Because TERM linux wasn't available on login, dircolors would choke on
the unknown sequences on the tty (TERM=linux) and subsequently set
LS_COLORS to nothing.  This meant that `ls --color=auto` worked on the
tty because the /default/ dircolors recognises TERM=linux but would fail
when using a TE on Xorg.  Why you do this coreutils 8.23? ._.
mpv: I can actually use vaapi on an external monitor now if I promise not to fullscreen it.  Yey...
zsh: source the dircolors now instead of eval as sourcing is my real intention, not eval.
zsh: Use ix
livestreamer: Don't use a local server