Threaded notifications (#4644)

* implemented grouping

* implemented presenting the thread

* improved the implementation by reusing the presentation action

* add Thread group to DMs to differentiate from non threaded messages of the same DM

* name for a threaded notification in group room

* focus event when tapping on a notification

* pr suggestions

* document

NSE/Sources/NSEUserSession.swift

@@ -11,6 +11,7 @@ import MatrixRustSDK
 
 final class NSEUserSession {
     let sessionDirectories: SessionDirectories
+    let appSettings: CommonSettingsProtocol
     
     private let baseClient: Client
     private let notificationClient: NotificationClient
@@ -49,6 +50,7 @@ final class NSEUserSession {
          appSettings: CommonSettingsProtocol) async throws {
         sessionDirectories = credentials.restorationToken.sessionDirectories
         userID = credentials.userID
+        self.appSettings = appSettings
         
         let homeserverURL = credentials.restorationToken.session.homeserverUrl
         let clientBuilder = ClientBuilder