niri: remove focus ring, add maximize keybind, set gaps to 0

niri/config.kdl

@@ -1,12 +1,12 @@
 layout {
-    gaps 10
+    gaps 0
 
     border {
         off
     }
 
     focus-ring {
-        width 4
+        off
     }
 }
 
@@ -45,6 +45,7 @@ spawn-at-startup "xwayland-satellite"
 binds {
     Mod+Q repeat=false { close-window; }
     Mod+F { fullscreen-window; }
+    Mod+Z { maximize-column; }
 
     Mod+Return { spawn "alacritty"; }
     Mod+D { spawn "wofi" "--show" "drun"; }