enable only notify mention for closed groups

Session/Conversations/Settings/OWSConversationSettingsViewController.m

@@ -515,7 +515,7 @@ CGFloat kIconViewLength = 24;
             [weakSelf.navigationController pushViewController:vc animated:YES];
         }]];
         
-        if (self.isOpenGroup) {
+        if (self.isGroupThread) {
             // Notification Settings
             [section addItem:[OWSTableItem itemWithCustomCellBlock:^{
                 UITableViewCell *cell = [OWSTableItem newCell];

SessionNotificationServiceExtension/Meta/SessionNotificationServiceExtension.entitlements

@@ -2,6 +2,8 @@
 <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
 <plist version="1.0">
 <dict>
+	<key>com.apple.developer.usernotifications.filtering</key>
+	<true/>
 	<key>aps-environment</key>
 	<string>development</string>
 	<key>com.apple.security.application-groups</key>

SessionNotificationServiceExtension/NotificationServiceExtension.swift

@@ -61,7 +61,7 @@ public final class NotificationServiceExtension : UNNotificationServiceExtension
                         if let thread = TSThread.fetch(uniqueId: threadID, transaction: transaction), let group = thread as? TSGroupThread,
                             group.groupModel.groupType == .closedGroup { // Should always be true because we don't get PNs for open groups
                             senderDisplayName = String(format: NotificationStrings.incomingGroupMessageTitleFormat, senderDisplayName, group.groupModel.groupName ?? MessageStrings.newGroupDefaultTitle)
-                            if let messageBody = tsIncomingMessage.previewText(with: transaction).filterForDisplay, !messageBody.contains("@\(userPublicKey)") && group.isOnlyNotifyingForMentions {
+                            if group.isOnlyNotifyingForMentions && !tsIncomingMessage.isUserMentioned {
                                 // Ignore PNs if the group is set to only notify mentions
                                 return self.completeSilenty()
                             }