Add docs for DRAW_ORDER_REVERSE_LIFETIME constant and minor XR log improvement

doc/classes/CPUParticles2D.xml

@@ -297,7 +297,7 @@
 			Particles are drawn in the order emitted.
 		</constant>
 		<constant name="DRAW_ORDER_LIFETIME" value="1" enum="DrawOrder">
-			Particles are drawn in order of remaining lifetime.
+			Particles are drawn in order of remaining lifetime. In other words, the particle with the highest lifetime is drawn at the front.
 		</constant>
 		<constant name="PARAM_INITIAL_LINEAR_VELOCITY" value="0" enum="Parameter">
 			Use with [method set_param_min], [method set_param_max], and [method set_param_curve] to set initial velocity properties.

doc/classes/CPUParticles3D.xml

@@ -322,7 +322,7 @@
 			Particles are drawn in the order emitted.
 		</constant>
 		<constant name="DRAW_ORDER_LIFETIME" value="1" enum="DrawOrder">
-			Particles are drawn in order of remaining lifetime.
+			Particles are drawn in order of remaining lifetime. In other words, the particle with the highest lifetime is drawn at the front.
 		</constant>
 		<constant name="DRAW_ORDER_VIEW_DEPTH" value="2" enum="DrawOrder">
 			Particles are drawn in order of depth.

doc/classes/GPUParticles2D.xml

@@ -141,9 +141,10 @@
 			Particles are drawn in the order emitted.
 		</constant>
 		<constant name="DRAW_ORDER_LIFETIME" value="1" enum="DrawOrder">
-			Particles are drawn in order of remaining lifetime.
+			Particles are drawn in order of remaining lifetime. In other words, the particle with the highest lifetime is drawn at the front.
 		</constant>
 		<constant name="DRAW_ORDER_REVERSE_LIFETIME" value="2" enum="DrawOrder">
+			Particles are drawn in reverse order of remaining lifetime. In other words, the particle with the lowest lifetime is drawn at the front.
 		</constant>
 		<constant name="EMIT_FLAG_POSITION" value="1" enum="EmitFlags">
 			Particle starts at the specified position.

doc/classes/GPUParticles3D.xml

@@ -166,9 +166,10 @@
 			Particles are drawn in the order emitted.
 		</constant>
 		<constant name="DRAW_ORDER_LIFETIME" value="1" enum="DrawOrder">
-			Particles are drawn in order of remaining lifetime.
+			Particles are drawn in order of remaining lifetime. In other words, the particle with the highest lifetime is drawn at the front.
 		</constant>
 		<constant name="DRAW_ORDER_REVERSE_LIFETIME" value="2" enum="DrawOrder">
+			Particles are drawn in reverse order of remaining lifetime. In other words, the particle with the lowest lifetime is drawn at the front.
 		</constant>
 		<constant name="DRAW_ORDER_VIEW_DEPTH" value="3" enum="DrawOrder">
 			Particles are drawn in order of depth.

doc/classes/RenderingServer.xml

@@ -4505,9 +4505,10 @@
 			Draw particles in the order that they appear in the particles array.
 		</constant>
 		<constant name="PARTICLES_DRAW_ORDER_LIFETIME" value="1" enum="ParticlesDrawOrder">
-			Sort particles based on their lifetime.
+			Sort particles based on their lifetime. In other words, the particle with the highest lifetime is drawn at the front.
 		</constant>
 		<constant name="PARTICLES_DRAW_ORDER_REVERSE_LIFETIME" value="2" enum="ParticlesDrawOrder">
+			Sort particles based on the inverse of their lifetime. In other words, the particle with the lowest lifetime is drawn at the front.
 		</constant>
 		<constant name="PARTICLES_DRAW_ORDER_VIEW_DEPTH" value="3" enum="ParticlesDrawOrder">
 			Sort particles based on their distance to the camera.

servers/xr_server.cpp

@@ -198,9 +198,7 @@ void XRServer::remove_interface(const Ref<XRInterface> &p_interface) {
 	};
 
 	ERR_FAIL_COND_MSG(idx == -1, "Interface not found.");
-
-	print_verbose("XR: Removed interface" + p_interface->get_name());
-
+	print_verbose("XR: Removed interface \"" + p_interface->get_name() + "\"");
 	emit_signal(SNAME("interface_removed"), p_interface->get_name());
 	interfaces.remove_at(idx);
 };