feature: default to fuzzy GPS location on the Default Channel (#4467)

* feature: default to fuzzy GPS location on the Default Channel

* Default to 13

* 13 default

---------

Co-authored-by: Ben Meadors <benmmeadors@gmail.com>

src/modules/PositionModule.cpp

@@ -298,7 +298,8 @@ void PositionModule::sendOurPosition(NodeNum dest, bool wantReplies, uint8_t cha
     if (channels.getByIndex(channel).settings.has_module_settings) {
         precision = channels.getByIndex(channel).settings.module_settings.position_precision;
     } else if (channels.getByIndex(channel).role == meshtastic_Channel_Role_PRIMARY) {
-        precision = 32;
+        // backwards compatibility for Primary channels created before position_precision was set by default
+        precision = 13;
     } else {
         precision = 0;
     }
@@ -470,4 +471,4 @@ void PositionModule::handleNewPosition()
     }
 }
 
-#endif
+#endif