Make sizing of addacount button more reasonable

Signed-off-by: Claudio Cambra <claudio.cambra@nextcloud.com>

src/gui/tray/MainWindow.qml

@@ -319,20 +319,13 @@ ApplicationWindow {
                             onObjectRemoved: accountMenu.removeItem(object)
                         }
 
-                        Rectangle {
-                            anchors.left: parent.left
-                            anchors.right: parent.right
-                            implicitHeight: 1
-                            color: palette.dark
-                        }
-
                         MenuItem {
                             id: addAccountButton
-                            height: Systray.enableAddAccount ? Style.addAccountButtonHeight : 0
                             hoverEnabled: true
                             visible: Systray.enableAddAccount
 
                             icon.source: "image://svgimage-custom-color/add.svg/" + palette.windowText
+                            icon.width: Style.accountAvatarSize
                             text: qsTr("Add account") 
                             onClicked: UserModel.addAccount()
 
@@ -341,6 +334,13 @@ ApplicationWindow {
                             Accessible.onPressAction: addAccountButton.clicked()
                         }
 
+                        Rectangle {
+                            anchors.left: parent.left
+                            anchors.right: parent.right
+                            implicitHeight: 1
+                            color: palette.dark
+                        }
+
                         MenuItem {
                             id: syncPauseButton
                             font.pixelSize: Style.topLinePixelSize