save and load layouts for i3wm
this currently only works with urxvt + (cmus, cava, tty-clock, ranger, neofetch)
the goal here is to generalize enough about the i3 layout save and restore process
to make it as easy as running $ i3-lm s 2 & $ i3-lm l 2 busy.json
- save workspace
$ i3-lm s 2
- load workspace
$ i3-lm l 2 busy.json