Remove the protocol for SpaceServiceRoom given its a struct type. (#5000)

* Remove the protocol for SpaceServiceRoom given its a struct type.

* Fix a few missed mocks in the unit tests.

ElementX/Sources/Screens/JoinRoomScreen/JoinRoomScreenCoordinator.swift

@@ -18,7 +18,7 @@ struct JoinRoomScreenCoordinatorParameters {
 
 enum JoinRoomScreenSource {
     case generic(roomID: String, via: [String])
-    case space(SpaceServiceRoomProtocol)
+    case space(SpaceServiceRoom)
     
     func roomIDAndVia() -> (roomID: String, via: [String]) {
         switch self {

ElementX/Sources/Screens/JoinRoomScreen/JoinRoomScreenViewModel.swift

@@ -200,7 +200,7 @@ class JoinRoomScreenViewModel: JoinRoomScreenViewModelType, JoinRoomScreenViewMo
                                                       spaceVisibility: nil)
     }
     
-    private func updateSpaceRoomDetails(spaceServiceRoom: SpaceServiceRoomProtocol, inviter: RoomInviterDetails?) async {
+    private func updateSpaceRoomDetails(spaceServiceRoom: SpaceServiceRoom, inviter: RoomInviterDetails?) async {
         state.roomDetails = JoinRoomScreenRoomDetails(name: spaceServiceRoom.name,
                                                       topic: spaceServiceRoom.topic,
                                                       canonicalAlias: spaceServiceRoom.canonicalAlias,

ElementX/Sources/Screens/JoinRoomScreen/View/JoinRoomScreen.swift

@@ -447,7 +447,7 @@ struct JoinRoomScreenPreviewWrapper: Identifiable {
         }
         
         let source: JoinRoomScreenSource = if isSpace {
-            .space(SpaceServiceRoomMock(mode: mode))
+            .space(SpaceServiceRoom.mock(joinRoomScreenMode: mode))
         } else {
             .generic(roomID: "1", via: [])
         }