User verification state indicators (#3793)

* Introduce a `UserIdentityProxy` and have it combine upstream methods into an easy to digest  `UserIdentityVerificationState`. Use it in a dedicated `VerificationBadge` UI component

* Show a DMs counterpart verification state in the room header

* Show a warning on the room details `People` entry when there are identity verification state violations on any of the members.

* Show verification badges in the room member list

* Show a withdraw verification section on the room member details for users that have pinning violations.

* Remove the verification section from the profile screen as there's no reliable way to keep it up to date
- the underlying Rust SDK Olm Machine can be rebuilt without notice which would break any existing user identity change streams.

* Update preview test snapshots

ElementX/Sources/Screens/RoomMemberDetailsScreen/RoomMemberDetailsScreenViewModel.swift

@@ -42,10 +42,20 @@ class RoomMemberDetailsScreenViewModel: RoomMemberDetailsScreenViewModelType, Ro
         super.init(initialViewState: initialViewState, mediaProvider: mediaProvider)
         
         showMemberLoadingIndicator()
+        
         Task {
             await loadMember()
             hideMemberLoadingIndicator()
         }
+        
+        roomProxy.identityStatusChangesPublisher
+            .receive(on: DispatchQueue.main)
+            .sink { changes in
+                if changes.map(\.userId).contains(userID) {
+                    Task { await self.loadMember() }
+                }
+            }
+            .store(in: &cancellables)
     }
     
     // MARK: - Public
@@ -77,16 +87,15 @@ class RoomMemberDetailsScreenViewModel: RoomMemberDetailsScreenViewModelType, Ro
             actionsSubject.send(.startCall(roomID: roomID))
         case .verifyUser:
             actionsSubject.send(.verifyUser(userID: state.userID))
+        case .withdrawVerification:
+            Task { await clientProxy.withdrawUserIdentityVerification(state.userID) }
         }
     }
 
     // MARK: - Private
     
     private func loadMember() async {
-        async let memberResult = roomProxy.getMember(userID: state.userID)
-        async let identityResult = clientProxy.userIdentity(for: state.userID)
-        
-        switch await memberResult {
+        switch await roomProxy.getMember(userID: state.userID) {
         case .success(let member):
             roomMemberProxy = member
             state.memberDetails = RoomMemberDetails(withProxy: member)
@@ -105,8 +114,8 @@ class RoomMemberDetailsScreenViewModel: RoomMemberDetailsScreenViewModelType, Ro
             actionsSubject.send(.openUserProfile)
         }
         
-        if case let .success(.some(identity)) = await identityResult {
-            state.isVerified = identity.isVerified()
+        if case let .success(.some(identity)) = await clientProxy.userIdentity(for: state.userID) {
+            state.verificationState = identity.verificationState
         } else {
             MXLog.error("Failed to find the member's identity.")
         }