tmux: sort session chooser alphabetically

services/tmux.nix

@@ -66,6 +66,8 @@ lib.mkIf (lib.elem "tmux" config.machine.services) {
           set-option -sa terminal-overrides ",xterm*:Tc"
           # Enable mouse interactions (scroll buffer)
           set -g mouse on
+          # Override sorting for session list
+          bind-key s choose-tree -Zs -O name
         '';
     };
 }