Send optout for real and only once.

network.cpp

@@ -178,7 +178,7 @@ void Network::sendOptOut()
 
     QJsonDocument doc;
     doc.setArray(array);
-    sendMixpanel(doc.toJson());
+    sendMixpanel(doc.toJson(), true /*isOptOut*/);
 
 #if defined(DEBUG)
     printf("%s %s\n", qPrintable("opt_out"), qPrintable(doc.toJson(QJsonDocument::Indented)));
@@ -272,9 +272,9 @@ void Network::sendIpify()
     connect(reply, &QNetworkReply::finished, this, &Network::handleIpifyFinished);
 }
 
-void Network::sendMixpanel(const QByteArray &json)
+void Network::sendMixpanel(const QByteArray &json, bool isOptOut)
 {
-    if (!m_usageStatsActive)
+    if (!m_usageStatsActive && !isOptOut)
         return;
 
     QUrl trackUrl("https://api.mixpanel.com/track");

network.h

@@ -47,7 +47,7 @@ private:
     void sendHealth();
     void sendIpify();
     void sendMixpanelEvent(const QString &event);
-    void sendMixpanel(const QByteArray &json);
+    void sendMixpanel(const QByteArray &json, bool isOptOut = false);
     bool packageAndSendJson(const QString &ingestId, const QString &json);
 
 private:

qml/StartupDialog.qml

@@ -21,14 +21,6 @@ Dialog {
         id: theme
     }
 
-    Connections {
-        target: startupDialog
-        function onClosed() {
-            if (!Network.usageStatsActive)
-                Network.usageStatsActive = false // opt-out triggered
-        }
-    }
-
     Column {
         id: column
         spacing: 20