add permanent glow to bar groups

modules/BarGroup.qml

@@ -1,4 +1,5 @@
 import QtQuick
+import QtQuick.Effects
 import "." as M
 
 Rectangle {
@@ -6,7 +7,6 @@ Rectangle {
 
     default property alias content: row.children
     property color borderColor: M.Theme.base02
-
     color: "transparent"
     border.color: borderColor
     border.width: 1
@@ -14,6 +14,15 @@ Rectangle {
 
     visible: row.visibleChildren.length > 0
 
+    layer.enabled: true
+    layer.effect: MultiEffect {
+        shadowEnabled: true
+        shadowColor: root.borderColor
+        shadowBlur: 0.6
+        shadowVerticalOffset: 0
+        shadowHorizontalOffset: 0
+    }
+
     implicitWidth: row.implicitWidth + _pad * 2
     implicitHeight: row.implicitHeight + _pad * 2