filter out geo from non-geo sensors, and publish gps for device tracking

frontend/src/components/settings/SettingsFanoutSection.tsx

@@ -1179,14 +1179,22 @@ function MqttHaConfigEditor({
 
           <div>
             <span className="font-medium text-foreground">Per tracked contact</span> &mdash; updates
-            passively when advertisements with GPS are heard. Shown for one contact; a tracker is
-            created for each selected contact.
+            passively when advertisements with GPS are heard, and from any GPS reading in the
+            contact&apos;s CayenneLPP telemetry. Shown for one contact; a tracker is created for each
+            selected contact.
             <ul className="mt-0.5 ml-4 list-disc space-y-0.5">
               <li>
                 <code className="text-[0.6875rem]">
                   {`device_tracker.meshcore_${exampleContactNodeId}`}
                 </code>{' '}
-                &mdash; latitude/longitude
+                &mdash; latitude/longitude (plus altitude when telemetry provides it)
+              </li>
+              <li>
+                <code className="text-[0.6875rem]">
+                  {`sensor.meshcore_${exampleContactNodeId}_lpp_temperature_ch1`}
+                </code>
+                , etc. &mdash; CayenneLPP sensors (when the contact is tracked for telemetry; GPS
+                goes to the tracker above)
               </li>
             </ul>
           </div>