Fix notification display after friend request is accepted.

js/models/conversations.js

@@ -2165,6 +2165,7 @@
         message: i18n(message, conversation.getTitle()),
         messageSentAt: Date.now(),
         title: i18n(title),
+        isFriendRequest: true,
       });
     },
 

js/notifications.js

@@ -86,12 +86,15 @@
       let message;
       let iconUrl;
 
+      // The number of notifications excluding friend request
+      const messagesNotificationCount = this.models.filter(n => !n.get('isFriendRequest')).length;
+
       // NOTE: i18n has more complex rules for pluralization than just
       // distinguishing between zero (0) and other (non-zero),
       // e.g. Russian:
       // http://docs.translatehouse.org/projects/localization-guide/en/latest/l10n/pluralforms.html
-      const newMessageCountLabel = `${numNotifications} ${
-        numNotifications === 1 ? i18n('newMessage') : i18n('newMessages')
+      const newMessageCountLabel = `${messagesNotificationCount} ${
+        messagesNotificationCount === 1 ? i18n('newMessage') : i18n('newMessages')
       }`;
 
       const last = this.last().toJSON();
@@ -105,7 +108,7 @@
           title = newMessageCountLabel;
           // eslint-disable-next-line prefer-destructuring
           iconUrl = last.iconUrl;
-          if (numNotifications === 1) {
+          if (last.isFriendRequest || messagesNotificationCount === 1) {
             message = `${i18n('notificationFrom')} ${lastMessageTitle}`;
           } else {
             message = `${i18n(
@@ -115,7 +118,7 @@
           break;
         }
         case SettingNames.MESSAGE:
-          if (numNotifications === 1) {
+          if (last.isFriendRequest || messagesNotificationCount === 1) {
             // eslint-disable-next-line prefer-destructuring
             title = last.title;
             // eslint-disable-next-line prefer-destructuring