Refactored transaction handling.

frontend/proxy.conf.json

@@ -9,10 +9,10 @@
     "ws": true
   },
   "/api/": {
-    "target": "http://localhost:50001/",
+    "target": "http://localhost:8999/",
     "secure": false,
     "pathRewrite": {
-      "^/api/": ""
+      "^/api/": "/api/v1/"
     }
   },
   "/testnet/api/v1": {