telemetry: Log frontend type.

src/citra/citra.cpp

@@ -165,6 +165,8 @@ int main(int argc, char** argv) {
         break; // Expected case
     }
 
+    Core::Telemetry().AddField(Telemetry::FieldType::App, "Frontend", "SDL");
+
     while (emu_window->IsOpen()) {
         system.RunLoop();
     }

src/citra_qt/main.cpp

@@ -364,6 +364,8 @@ bool GMainWindow::LoadROM(const QString& filename) {
 
     const Core::System::ResultStatus result{system.Load(render_window, filename.toStdString())};
 
+    Core::Telemetry().AddField(Telemetry::FieldType::App, "Frontend", "Qt");
+
     if (result != Core::System::ResultStatus::Success) {
         switch (result) {
         case Core::System::ResultStatus::ErrorGetLoader: