Bug fix websocket server

- Minor fix in the websocket on the serverside

Change-Id: I0ba6a989a87bb4dcd11eae763c45bee6a4f2096d
diff --git a/server/src/ws.ts b/server/src/ws.ts
index 3ac1bcd..46d563a 100644
--- a/server/src/ws.ts
+++ b/server/src/ws.ts
@@ -118,7 +118,7 @@
       return false;
     }
     for (const accountSocket of accountSockets) {
-      accountSocket.send(message);
+      accountSocket.send(JSON.stringify(message));
     }
     return true;
   }