Add websockets and notify frontend when an item is processed

modules/webapp/src/main/elm/App/Data.elm

@@ -190,6 +190,7 @@ type Msg
     | SetLanguage UiLanguage
     | ClientSettingsSaveResp UiSettings (Result Http.Error BasicResult)
     | ReceiveBrowserSettings StoredUiSettings
+    | ReceiveWsMessage String
 
 
 defaultPage : Flags -> Page

modules/webapp/src/main/elm/App/Update.elm

@@ -308,6 +308,13 @@ updateWithSub msg model =
             in
             updateUserSettings texts lm model
 
+        ReceiveWsMessage data ->
+            let
+                _ =
+                    Debug.log "WS-msg" data
+            in
+            ( model, Cmd.none, Sub.none )
+
 
 applyClientSettings : Messages -> Model -> UiSettings -> ( Model, Cmd Msg, Sub Msg )
 applyClientSettings texts model settings =