fix: change MeshPacket default `hopLimit` to match LoRa config instead of 0

app/src/main/java/com/geeksville/mesh/service/MeshService.kt

@@ -489,7 +489,7 @@ class MeshService : Service(), Logging {
     private fun MeshPacket.Builder.buildMeshPacket(
         wantAck: Boolean = false,
         id: Int = generatePacketId(), // always assign a packet ID if we didn't already have one
-        hopLimit: Int = 0,
+        hopLimit: Int = localConfig.lora.hopLimit,
         channel: Int = 0,
         priority: MeshPacket.Priority = MeshPacket.Priority.UNSET,
         initFn: MeshProtos.Data.Builder.() -> Unit