Add setting to keep track whether it is the Plasmoid

plasmoid/lib/syncthingapplet.cpp

@@ -138,6 +138,7 @@ void SyncthingApplet::init()
 
     // restore settings
     auto &settings = Settings::values();
+    settings.isPlasmoid = true;
     Settings::restore();
 
     // initialize systemd service support

widgets/settings/settings.h

@@ -157,6 +157,7 @@ struct SYNCTHINGWIDGETS_EXPORT Settings {
     bool firstLaunch = false;
     bool fakeFirstLaunch = false; // not persistent, for testing purposes only
     bool enableWipFeatures = false; // not persistent, for testing purposes only
+    bool isPlasmoid = false; // not persistent, set by the Plasmoid
     Connection connection;
     NotifyOn notifyOn;
 #ifdef QT_UTILITIES_SUPPORT_DBUS_NOTIFICATIONS