feat(ui): Websocket

Added simple websocket. Serverside websocket logic isnt in the usersession

knockoutwhistweb/app/assets/actor/KnockOutWebSocketActor.scala

@@ -0,0 +1,21 @@
+package actor
+
+import org.apache.pekko.actor.{Actor, ActorRef}
+import org.apache.pekko.http.scaladsl.model.ContentRange.Other
+
+
+class KnockOutWebSocketActor(
+                              out: ActorRef,
+                            ) extends Actor {
+    def receive: Receive = {
+      case msg: String =>
+        out ! s"Received your message: ${msg}"
+      case other: Other =>
+        println(s"Received unknown message: $other")
+    }
+
+    def sendJsonToClient(json: String): Unit = {
+      println("Received event from Controller")
+      out ! json
+    }
+}