talos: home: put some gaps in sway

How am I only finding out about this now?

home/tmux.nix

@@ -19,6 +19,7 @@ in {
   config = mkIf cfg.enable {
     programs.tmux = {
       enable = true;
+      escapeTime = 0;
       baseIndex = 1;
       terminal = "screen-256color";
       clock24 = true;

hosts/talos/home.nix

@@ -149,6 +149,11 @@ in {
         client.urgent            $peach    $base $peach $overlay0  $peach
         client.placeholder       $overlay0 $base $text  $overlay0  $overlay0
         client.background        $base
+
+        smart_borders on
+        default_border pixel 3
+        gaps inner 5
+        gaps outer 3
       '';
     };