SidePanel: fix #218 sidepanel should open next to the button (as other panels)

Modules/Bar/Widgets/SidePanelToggle.qml

@@ -21,7 +21,7 @@ NIconButton {
   colorBorderHover: Color.transparent
 
   anchors.verticalCenter: parent.verticalCenter
-  onClicked: PanelService.getPanel("sidePanel")?.toggle(screen)
+  onClicked: PanelService.getPanel("sidePanel")?.toggle(screen, this)
   onRightClicked: PanelService.getPanel("settingsPanel")?.toggle(screen)
 
   // When enabled, draw the distro logo instead of the icon glyph

Modules/SidePanel/SidePanel.qml

@@ -12,7 +12,6 @@ NPanel {
 
   panelWidth: 460 * scaling
   panelHeight: 708 * scaling
-  panelAnchorRight: true
 
   panelContent: Item {
     id: content