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/RoomDetailsScreen/RoomDetailsScreenModels.swift

@@ -39,7 +39,10 @@ struct RoomDetailsScreenViewState: BindableState {
 
     var topic: AttributedString?
     var topicSummary: AttributedString?
+    
     var joinedMembersCount: Int
+    var hasMemberIdentityVerificationStateViolations = false
+    
     var isProcessingIgnoreRequest = false
     var canInviteUsers = false
     var canEditRoomName = false

ElementX/Sources/Screens/RoomDetailsScreen/RoomDetailsScreenViewModel.swift

@@ -200,6 +200,12 @@ class RoomDetailsScreenViewModel: RoomDetailsScreenViewModelType, RoomDetailsScr
             .throttle(for: .milliseconds(100), scheduler: DispatchQueue.main, latest: true)
             .weakAssign(to: \.state.knockRequestsCount, on: self)
             .store(in: &cancellables)
+        
+        roomProxy.membersPublisher.combineLatest(roomProxy.identityStatusChangesPublisher)
+            .sink { _ in
+                Task { await self.updateMemberIdentityVerificationStates() }
+            }
+            .store(in: &cancellables)
     }
     
     private func updateRoomInfo(_ roomInfo: RoomInfoProxy) {
@@ -239,6 +245,24 @@ class RoomDetailsScreenViewModel: RoomDetailsScreenViewModelType, RoomDetailsScr
         await roomProxy.updateMembers()
     }
     
+    private func updateMemberIdentityVerificationStates() async {
+        guard roomProxy.isEncrypted else {
+            // We don't care about identity statuses on non-encrypted rooms
+            return
+        }
+        
+        for member in roomProxy.membersPublisher.value {
+            if case let .success(identity) = await clientProxy.userIdentity(for: member.userID) {
+                if identity?.verificationState == .verificationViolation {
+                    state.hasMemberIdentityVerificationStateViolations = true
+                    return
+                }
+            }
+        }
+        
+        state.hasMemberIdentityVerificationStateViolations = false
+    }
+    
     private func updatePowerLevelPermissions() async {
         state.canEditRoomName = await (try? roomProxy.canUser(userID: roomProxy.ownUserID, sendStateEvent: .roomName).get()) == true
         state.canEditRoomTopic = await (try? roomProxy.canUser(userID: roomProxy.ownUserID, sendStateEvent: .roomTopic).get()) == true

ElementX/Sources/Screens/RoomDetailsScreen/View/RoomDetailsScreen.swift

@@ -198,14 +198,23 @@ struct RoomDetailsScreen: View {
     
     private var peopleSection: some View {
         Section {
-            ListRow(label: .default(title: L10n.commonPeople,
-                                    icon: \.user),
-                    details: .title(String(context.viewState.joinedMembersCount)),
-                    kind: .navigationLink {
-                        context.send(viewAction: .processTapPeople)
-                    })
-                    .accessibilityIdentifier(A11yIdentifiers.roomDetailsScreen.people)
-            
+            if context.viewState.hasMemberIdentityVerificationStateViolations {
+                ListRow(label: .default(title: L10n.commonPeople, icon: \.user),
+                        details: .icon(CompoundIcon(\.infoSolid).foregroundStyle(.compound.iconCriticalPrimary)),
+                        kind: .navigationLink {
+                            context.send(viewAction: .processTapPeople)
+                        })
+                        .accessibilityIdentifier(A11yIdentifiers.roomDetailsScreen.people)
+                
+            } else {
+                ListRow(label: .default(title: L10n.commonPeople, icon: \.user),
+                        details: .title(String(context.viewState.joinedMembersCount)),
+                        kind: .navigationLink {
+                            context.send(viewAction: .processTapPeople)
+                        })
+                        .accessibilityIdentifier(A11yIdentifiers.roomDetailsScreen.people)
+            }
+        
             if context.viewState.canSeeKnockingRequests {
                 ListRow(label: .default(title: L10n.screenRoomDetailsRequestsToJoinTitle,
                                         icon: \.askToJoin),