stop ratel from requerying /health every 3 seconds (#360)

Author: octref

client/src/actions/connection.js

@@ -38,6 +38,7 @@ const SLASH_DOMAINS = [
     ".app.thegaas.com",
     ".slash.dgraph.io",
     ".cloud.dgraph.io",
+    "hypermode.host",
 ];
 
 const assert = (test, message = "No message") => {

client/src/components/ServerConnectionModal.js

@@ -32,6 +32,8 @@ import ZeroUrlWidget from "./ZeroUrlWidget";
 
 import "./ServerConnectionModal.scss";
 
+const CHECK_HEALTH_INTERVAL = 30000;
+
 export default function ServerConnectionModal() {
     const dispatch = useDispatch();
     const onHide = () => dispatch(clickSidebarUrl(""));
@@ -61,7 +63,7 @@ export default function ServerConnectionModal() {
             return;
         }
         dispatch(actions.checkHealth({ unknownOnStart: false }));
-    }, 3000);
+    }, CHECK_HEALTH_INTERVAL);
 
     const connectTo = url => {
         if (!url || !url.trim()) {