Fix UI staleness after network issues (#1192)

Signed-off-by: Jari Kolehmainen <jari.kolehmainen@gmail.com>

src/renderer/lens-app.tsx

@@ -1,5 +1,6 @@
 import "../common/system-ca"
 import React from "react";
+import { ipcRenderer } from "electron";
 import { Route, Router, Switch } from "react-router";
 import { observer } from "mobx-react";
 import { userStore } from "../common/user-store";
@@ -17,6 +18,12 @@ import { extensionLoader } from "../extensions/extension-loader";
 export class LensApp extends React.Component {
   static async init() {
     extensionLoader.loadOnClusterManagerRenderer();
+    window.addEventListener("offline", () => {
+      ipcRenderer.send("network:offline")
+    })
+    window.addEventListener("online", () => {
+      ipcRenderer.send("network:online")
+    })
   }
 
   render() {