Implement Knock Logic (#3573)

* WIP RequestToJoin struct

* implemented the logic to display the cells

* knock request banner accept flow

* mark all knocks as seen implemented

* details logic

* implemented accept, decline and ban in the list

* added a loader and modified the stacked view

of the banner

* pr suggestions

* updated naming and loading strings

* added the initial loading state

improved code and the tests

* updated a string that has changed

* code improvement

* tests for the room screen view model

* room details tests

and improved the knock requests tests for the room screen

* knock requests list tests

* added error state alerts with retry

* struct has been renamed on the sdk

so I renamed it also on the app side

* update SDK

ElementX/Sources/Services/Room/KnockRequestProxyProtocol.swift

@@ -0,0 +1,28 @@
+//
+// Copyright 2024 New Vector Ltd.
+//
+// SPDX-License-Identifier: AGPL-3.0-only
+// Please see LICENSE in the repository root for full details.
+//
+
+import Foundation
+
+enum KnockRequestProxyError: Error {
+    case sdkError(Error)
+}
+
+// sourcery: AutoMockable
+protocol KnockRequestProxyProtocol {
+    var eventID: String { get }
+    var userID: String { get }
+    var displayName: String? { get }
+    var avatarURL: URL? { get }
+    var reason: String? { get }
+    var formattedTimestamp: String? { get }
+    var isSeen: Bool { get }
+    
+    func accept() async -> Result<Void, KnockRequestProxyError>
+    func decline() async -> Result<Void, KnockRequestProxyError>
+    func ban() async -> Result<Void, KnockRequestProxyError>
+    func markAsSeen() async -> Result<Void, KnockRequestProxyError>
+}