quickshell: drop bar dividers, space groups instead

settings/quickshell.nix

@@ -775,18 +775,12 @@ in
                     font.pixelSize: 16
                 }
 
-                // ── BarSep: hairline between widget groups in the bar column.
-                // Wrapped in a plain Item because a Column refuses to position
-                // children that set their own horizontalCenter anchor.
+                // ── BarSep: extra whitespace between widget groups. Groups are
+                // separated by air, not by lines — a drawn rule read as clutter
+                // in a 46px column.
                 component BarSep: Item {
                     width: Theme.barWidth
-                    height: 1
-                    Rectangle {
-                        anchors.centerIn: parent
-                        width: 16
-                        height: 1
-                        color: Theme.base02
-                    }
+                    height: 12
                 }
 
                 // ── GlanceStat: a bar-column stat — clock-sized value over a