Add functionality to (Sparkle) updater settings on macOS

Also remove a debug line I accidentally left in

launcher/ui/pages/global/LauncherPage.cpp

@@ -261,7 +261,11 @@ void LauncherPage::applySettings()
     auto s = APPLICATION->settings();
 
     // Updates
+#ifdef Q_OS_MAC
+    APPLICATION->updateChecker()->getSparkleUpdater()->setAutomaticallyChecksForUpdates(ui->autoUpdateCheckBox->isChecked());
+#else
     s->set("AutoUpdate", ui->autoUpdateCheckBox->isChecked());
+#endif
     s->set("UpdateChannel", m_currentUpdateChannel);
     auto original = s->get("IconTheme").toString();
     //FIXME: make generic
@@ -343,7 +347,11 @@ void LauncherPage::loadSettings()
 {
     auto s = APPLICATION->settings();
     // Updates
+#ifdef Q_OS_MAC
+    ui->autoUpdateCheckBox->setChecked(APPLICATION->updateChecker()->getSparkleUpdater()->getAutomaticallyChecksForUpdates());
+#else
     ui->autoUpdateCheckBox->setChecked(s->get("AutoUpdate").toBool());
+#endif
     m_currentUpdateChannel = s->get("UpdateChannel").toString();
     //FIXME: make generic
     auto theme = s->get("IconTheme").toString();

launcher/ui/pages/global/LauncherPage.ui

@@ -54,7 +54,7 @@
           <item>
            <widget class="QCheckBox" name="autoUpdateCheckBox">
             <property name="text">
-             <string>Check for updates on start?</string>
+             <string>Check for updates automatically</string>
             </property>
            </widget>
           </item>

launcher/updater/macsparkle/SparkleUpdater.mm

@@ -173,7 +173,6 @@ void SparkleUpdater::setAllowedChannel(const QString &channel)
 
     NSSet<NSString *> *nsChannels = [NSSet setWithObject:channel.toNSString()];
     priv->updaterDelegate.allowedChannels = nsChannels;
-    qDebug() << channel;
     APPLICATION->settings()->set("UpdateChannel", channel);
 }