[MM-40025] Stop app from redirecting to tabs when not logged in (#1870)

src/main/preload/mattermost.js

@@ -23,6 +23,7 @@ import {
     CLOSE_TEAMS_DROPDOWN,
     BROWSER_HISTORY_PUSH,
     APP_LOGGED_IN,
+    APP_LOGGED_OUT,
     GET_VIEW_NAME,
     GET_VIEW_WEBCONTENTS_ID,
 } from 'common/communication';
@@ -256,6 +257,9 @@ window.addEventListener('storage', (e) => {
     if (e.key === '__login__' && e.storageArea === localStorage && e.newValue) {
         ipcRenderer.send(APP_LOGGED_IN, viewName);
     }
+    if (e.key === '__logout__' && e.storageArea === localStorage && e.newValue) {
+        ipcRenderer.send(APP_LOGGED_OUT, viewName);
+    }
 });
 
 /* eslint-enable no-magic-numbers */