[Mac] More Mac fixes

Author: christofmuc

Client/Source/AudioCallback.cpp

@@ -398,7 +398,7 @@ void AudioCallback::audioDeviceIOCallbackWithContext(const float* const* inputCh
 			}
 
 			// Check if the slider wasn't updated for a while, then take the server value and update the slider
-			if (!bpmSliderLastMoved_.has_value() || (std::chrono::steady_clock::now() - bpmSliderLastMoved_.value()) > std::chrono::seconds(1)) {
+			if (!bpmSliderLastMoved_.has_value() || (std::chrono::steady_clock::now() - *bpmSliderLastMoved_) > std::chrono::seconds(1)) {
 				Data::getPropertyAsValue(VALUE_SERVER_BPM).setValue(bpm);
 				bpmSliderLastMoved_ = std::chrono::steady_clock::now();
 			}

Client/Source/Client.cpp

@@ -96,7 +96,7 @@ bool Client::sendData(JammerNetzChannelSetup const& channelSetup, std::shared_pt
 	}
 	MidiSignal toSend = MidiSignal_None;
 	if (controllers.midiSignal.has_value()) {
-		toSend = controllers.midiSignal.value();
+		toSend = *controllers.midiSignal;
 	}
 
 	// Create a message