shell: new lock anim for bkg and bar

modules/user/modules/quickshell/shell/bar/BarContainment.qml

@@ -16,7 +16,6 @@ PanelWindow {
 	}
 
 	width: 70
-	margins.left: Lock.Controller.locked ? -width : 0
 	exclusiveZone: width - margins.left
 
 	color: "transparent"
@@ -38,10 +37,13 @@ PanelWindow {
 	Rectangle {
 		id: barRect
 
+		x: 10 - Lock.Controller.bkgSlide * (barRect.width + 10)
+		width: parent.width - 15
+
 		anchors {
-			fill: parent
+			top: parent.top
+			bottom: parent.bottom
 			margins: 10
-			rightMargin: 5
 		}
 
 		color: ShellGlobals.colors.bar