delay messages to reduce mqtt issues (sender to fast) improve mqtt debugging

rust/src/plant_hal.rs

@@ -723,11 +723,14 @@ impl PlantCtrlBoardInteraction for PlantCtrlBoard<'_> {
             true,
             message,
         );
-        
+        Delay::new(10).delay_ms(10);
         match publish {
-            OkStd(_) => return Ok(()),
+            OkStd(message_id) => {
+                println!("Published mqtt topic {} with message {:#?} msgid is {:?}",full_topic, String::from_utf8_lossy(message), message_id);
+                return Ok(())
+            },
             Err(err) => {
-                println!("Error during mqtt send on topic {} with message {:#?} error is {:?}",full_topic, message, err);
+                println!("Error during mqtt send on topic {} with message {:#?} error is {:?}",full_topic, String::from_utf8_lossy(message), err);
                 return Err(err)?
             },
         }