ui: add notification config panel

This commit adds the same notification configuration panel that we
already use in Proxmox VE.

Signed-off-by: Lukas Wagner <l.wagner@proxmox.com>
Tested-by: Gabriel Goller <g.goller@proxmox.com>
Reviewed-by: Gabriel Goller <g.goller@proxmox.com>
Tested-by: Maximiliano Sandoval <m.sandoval@proxmox.com>
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>

www/Makefile

@@ -68,6 +68,7 @@ JSSRC=							\
 	config/CertificateView.js			\
 	config/NodeOptionView.js			\
 	config/MetricServerView.js			\
+	config/NotificationConfigView.js		\
 	config/PruneAndGC.js				\
 	window/ACLEdit.js				\
 	window/BackupGroupChangeOwner.js		\

www/NavigationTree.js

@@ -68,6 +68,12 @@ Ext.define('PBS.store.NavigationStore', {
 			path: 'pbsCertificateConfiguration',
 			leaf: true,
 		    },
+		    {
+			text: gettext('Notifications'),
+			iconCls: 'fa fa-bell-o',
+			path: 'pbsNotificationConfigView',
+			leaf: true,
+		    },
 		    {
 			text: gettext('Subscription'),
 			iconCls: 'fa fa-support',

www/config/NotificationConfigView.js

@@ -0,0 +1,11 @@
+Ext.define('PBS.config.NotificationConfigView', {
+    extend: 'Proxmox.panel.NotificationConfigView',
+    alias: ['widget.pbsNotificationConfigView'],
+    mixins: ['Proxmox.Mixin.CBind'],
+
+    cbindData: function(_initialConfig) {
+        return {
+            baseUrl: '/config/notifications',
+        };
+    },
+});