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/RoomProxyProtocol.swift

@@ -48,6 +48,11 @@ enum JoinedRoomProxyAction: Equatable {
     case roomInfoUpdate
 }
 
+enum KnockRequestsState {
+    case loading
+    case loaded([KnockRequestProxyProtocol])
+}
+
 // sourcery: AutoMockable
 protocol JoinedRoomProxyProtocol: RoomProxyProtocol {
     var isEncrypted: Bool { get }
@@ -60,6 +65,8 @@ protocol JoinedRoomProxyProtocol: RoomProxyProtocol {
     
     var identityStatusChangesPublisher: CurrentValuePublisher<[IdentityStatusChange], Never> { get }
     
+    var knockRequestsStatePublisher: CurrentValuePublisher<KnockRequestsState, Never> { get }
+    
     var timeline: TimelineProxyProtocol { get }
     
     var pinnedEventsTimeline: TimelineProxyProtocol? { get async }