Expose message Ids to the user

app/src/actions/Settings.ts

@@ -112,8 +112,8 @@ export const filterTopics = (filterStr: string) => (dispatch: Dispatch<any>, get
 
     const messageMatches =
       node.message &&
-      node.message.value &&
-      Base64Message.toUnicodeString(node.message.value).toLowerCase().indexOf(filterStr) !== -1
+      node.message.payload &&
+      Base64Message.toUnicodeString(node.message.payload).toLowerCase().indexOf(filterStr) !== -1
 
     return Boolean(messageMatches)
   }

app/src/actions/clearTopic.ts

@@ -48,6 +48,7 @@ export const clearTopic = (topic: q.TreeNode<any>, recursive: boolean) => async
         payload: null,
         retain: true,
         qos: 0 as 0,
+        messageId: undefined,
       }
       // Rate limit deletion
       setTimeout(() => rendererEvents.emit(publishEvent, mqttMessage), 20 * idx)