refactor: remove nexcloud meteor startup & tracker (#34996)

Co-authored-by: Douglas Fabris <27704687+dougfabris@users.noreply.github.com>

apps/meteor/app/nextcloud/client/index.ts

-import './lib';
+import './useNextcloud';

apps/meteor/app/nextcloud/client/lib.ts → apps/meteor/app/nextcloud/client/useNextcloud.ts

 import type { OauthConfig } from '@rocket.chat/core-typings';
-import { Meteor } from 'meteor/meteor';
-import { Tracker } from 'meteor/tracker';
-import _ from 'underscore';
+import { useSetting } from '@rocket.chat/ui-contexts';
+import { useEffect } from 'react';
 
 import { CustomOAuth } from '../../custom-oauth/client/CustomOAuth';
-import { settings } from '../../settings/client';
 
 const config: OauthConfig = {
 	serverURL: '',
@@ -21,20 +19,13 @@ const config: OauthConfig = {
 
 const Nextcloud = new CustomOAuth('nextcloud', config);
 
-const fillServerURL = _.debounce((): void => {
-	const nextcloudURL = settings.get('Accounts_OAuth_Nextcloud_URL');
-	if (!nextcloudURL) {
-		if (nextcloudURL === undefined) {
-			return fillServerURL();
-		}
-		return;
-	}
-	config.serverURL = nextcloudURL.trim().replace(/\/*$/, '');
-	return Nextcloud.configure(config);
-}, 100);
+export const useNextcloud = (): void => {
+	const nextcloudURL = useSetting('Accounts_OAuth_Nextcloud_URL') as string;
 
-Meteor.startup(() => {
-	Tracker.autorun(() => {
-		return fillServerURL();
-	});
-});
+	useEffect(() => {
+		if (nextcloudURL) {
+			config.serverURL = nextcloudURL.trim().replace(/\/*$/, '');
+			Nextcloud.configure(config);
+		}
+	}, [nextcloudURL]);
+};

apps/meteor/client/views/root/AppLayout.tsx

@@ -6,6 +6,7 @@ import { useEscapeKeyStroke } from './hooks/useEscapeKeyStroke';
 import { useGoogleTagManager } from './hooks/useGoogleTagManager';
 import { useMessageLinkClicks } from './hooks/useMessageLinkClicks';
 import { useAnalytics } from '../../../app/analytics/client/loadScript';
+import { useNextcloud } from '../../../app/nextcloud/client/useNextcloud';
 import { useAnalyticsEventTracking } from '../../hooks/useAnalyticsEventTracking';
 import { useLoadRoomForAllowedAnonymousRead } from '../../hooks/useLoadRoomForAllowedAnonymousRead';
 import { useNotifyUser } from '../../hooks/useNotifyUser';
@@ -28,6 +29,8 @@ const AppLayout = () => {
 	useLoadRoomForAllowedAnonymousRead();
 	useNotifyUser();
 
+	useNextcloud();
+
 	const layout = useSyncExternalStore(appLayout.subscribe, appLayout.getSnapshot);
 
 	return (