Improve background check handling, and hide services until connection is proved.

launcher/config.py

@@ -6,7 +6,7 @@ DEFAULT_CONFIG = {
     "app_title": "FJLA Gateway",
     "checks": {
         "network_targets": [["1.1.1.1", 53], ["8.8.8.8", 53]],
-        "ziti_target": ["127.0.0.1", 3020],
+        "ziti_target": "http://test.ziti",
     },
     "services": [
         {