Suggest verifying your own device in Devices settings

This button is currently hidden under the user menu, but it should be
shown more prominently - especially under the Devices settings. The
button under the user menu and this new one is now hidden when your
device is already verified.

src/settings/DevicesCard.qml

@@ -13,6 +13,7 @@ import org.kde.neochat
 ColumnLayout {
     id: root
 
+    default property alias delegates: devicesCard.delegates
     required property string title
     required property var type
     required property bool showVerifyButton