Add Tmux (#4562)

* Add Tmux

Being able to use a unified terminal setup between local and remote
hosts has some real advantages.

* Renaming is more important than reloading

* Self-explanatory, really

* Add alias for it

* Attach to last used session or start a new if we have none

* Just stick to n/p

* Make it a clean 10x

* We don't need this

* Keep similar fixes together

* Keep bindings together

* Hate looking at that 0

* Add way to refresh theme from its templates (when they've changed)

* Fix

migrations/1770638893.sh

@@ -0,0 +1,9 @@
+echo "Add Tmux as an option with themed styling"
+
+omarchy-pkg-add tmux
+
+if [[ ! -f ~/.config/tmux/tmux.conf ]]; then
+  mkdir -p ~/.config/tmux
+  cp $OMARCHY_PATH/config/tmux/tmux.conf ~/.config/tmux/tmux.conf
+  omarchy-theme-refresh
+fi