Reorganize Project Settings

-Advanced Settings toggle also hides advanced properties when disabled
-Simplified Advanced Bar (errors were just plain redundant)
-Reorganized rendering quality settings.
-Reorganized miscelaneous settings for clean up.

servers/audio/audio_driver_dummy.cpp

@@ -39,11 +39,11 @@ Error AudioDriverDummy::init() {
 	exit_thread = false;
 	samples_in = nullptr;
 
-	mix_rate = GLOBAL_GET("audio/mix_rate");
+	mix_rate = GLOBAL_GET("audio/driver/mix_rate");
 	speaker_mode = SPEAKER_MODE_STEREO;
 	channels = 2;
 
-	int latency = GLOBAL_GET("audio/output_latency");
+	int latency = GLOBAL_GET("audio/driver/output_latency");
 	buffer_frames = closest_power_of_2(latency * mix_rate / 1000);
 
 	samples_in = memnew_arr(int32_t, buffer_frames * channels);

servers/audio/audio_stream.cpp

@@ -184,7 +184,7 @@ void AudioStreamPlaybackMicrophone::start(float p_from_pos) {
 		return;
 	}
 
-	if (!GLOBAL_GET("audio/enable_audio_input")) {
+	if (!GLOBAL_GET("audio/driver/enable_input")) {
 		WARN_PRINT("Need to enable Project settings > Audio > Enable Audio Input option to use capturing.");
 		return;
 	}