Accept and decline invites (#806)

* Add accept/decline invite api

* Fix isDirect logic

* Add logic for accepting/decling invites

* Add error handling structure

* Add decline alert

* Add navigation to joined room

* Add generic error

* Add changelog.d file

* Cleanup

* Fix failing UTs

* Add UTs

* Add UI tests

* Cleanup

* Update ref screenshots

* Refactor invitesScreen state

* Improve switch handling in UserSessionFlowCoordinator

* Fix build error

ElementX/Sources/Services/Room/RoomProxy.swift

@@ -348,6 +348,26 @@ class RoomProxy: RoomProxyProtocol {
         }
     }
     
+    func rejectInvitation() async -> Result<Void, RoomProxyError> {
+        await Task.dispatch(on: .global()) {
+            do {
+                return try .success(self.room.rejectInvitation())
+            } catch {
+                return .failure(.failedRejectingInvite)
+            }
+        }
+    }
+    
+    func acceptInvitation() async -> Result<Void, RoomProxyError> {
+        await Task.dispatch(on: .global()) {
+            do {
+                return try .success(self.room.acceptInvitation())
+            } catch {
+                return .failure(.failedAcceptingInvite)
+            }
+        }
+    }
+    
     // MARK: - Private
     
     /// Force the timeline to load member details so it can populate sender profiles whenever we add a timeline listener

ElementX/Sources/Services/Room/RoomProxyProtocol.swift

@@ -33,6 +33,8 @@ enum RoomProxyError: Error {
     case failedAddingTimelineListener
     case failedRetrievingMembers
     case failedLeavingRoom
+    case failedAcceptingInvite
+    case failedRejectingInvite
 }
 
 @MainActor
@@ -90,6 +92,10 @@ protocol RoomProxyProtocol {
     func updateMembers() async
     
     func inviter() async -> RoomMemberProxyProtocol?
+    
+    func rejectInvitation() async -> Result<Void, RoomProxyError>
+    
+    func acceptInvitation() async -> Result<Void, RoomProxyError>
 }
 
 extension RoomProxyProtocol {

ElementX/Sources/Services/Room/RoomSummary/RoomSummaryProvider.swift

@@ -129,7 +129,7 @@ class RoomSummaryProvider: RoomSummaryProviderProtocol {
         
         let details = RoomSummaryDetails(id: room.roomId(),
                                          name: room.name() ?? room.roomId(),
-                                         isDirect: room.isDm() ?? false,
+                                         isDirect: fullRoom?.isDirect() ?? room.isDm() ?? false,
                                          avatarURL: avatarURL,
                                          lastMessage: attributedLastMessage,
                                          lastMessageFormattedTimestamp: lastMessageFormattedTimestamp,