Update aerospace keybinds, remove skhd, consolidate some theme scripts

todo.md

@@ -1,6 +1,9 @@
 # todo items
 
-- config for: terminal (kitty? havoc?); shell; mpd, mpc, ncmpcpp; mpv
+- config for: terminal (kitty? havoc?)
+- config for shell (if keeping zsh, may not need anything beyond what i've already done)
+- config for mpd, mpc, ncmpcpp
+- config for mpv (if any, may not need anything)
 - hyprland config and install on linux
 - web browsers config and install
 - get find, xargs, awk (use nawk) as unified as i can across system types
@@ -15,5 +18,4 @@
       to a base/core install, a music-studio install, a employer/work machine, etc.
     - alternate idea: columns for "include_in_systems" and/or "excluded_from_systems"
         - if both, likely apply the include column first, then the exclude (priority)
-- add command in tmux to perform cd to a given dir in all windows of the current session