Media gallery - part 1(#3588)

* Introduce a `MediaEventsTimelineFlowCoordinator`
* Update SDK API and architecture
* Add a feature flag, add translations
* Move the media events timeline presentation under the room flow coordinator state machine
* Rename `TimelineViewState.timelineViewState` of type `TimelineState` to `timelineState`
* Enabled SwiftLint's `trailing_closure` rule and fix the warnings.

ElementX/Sources/Application/AppCoordinator.swift

@@ -1048,7 +1048,7 @@ class AppCoordinator: AppCoordinatorProtocol, AuthenticationFlowCoordinatorDeleg
             .actionsPublisher
             .filter(\.isSyncUpdate)
             .collect(.byTimeOrCount(DispatchQueue.main, .seconds(10), 10))
-            .sink(receiveValue: { [weak self] _ in
+            .sink { [weak self] _ in
                 guard let self else { return }
                 MXLog.info("Background app refresh finished")
                 backgroundRefreshSyncObserver?.cancel()
@@ -1059,6 +1059,6 @@ class AppCoordinator: AppCoordinatorProtocol, AuthenticationFlowCoordinatorDeleg
                     MXLog.info("Marking Background app refresh task as complete.")
                     task.setTaskCompleted(success: true)
                 }
-            })
+            }
     }
 }

ElementX/Sources/Application/AppSettings.swift

@@ -48,6 +48,7 @@ final class AppSettings {
         case enableOnlySignedDeviceIsolationMode
         case knockingEnabled
         case createMediaCaptionsEnabled
+        case mediaBrowserEnabled
     }
     
     private static var suiteName: String = InfoPlistReader.main.appGroupIdentifier
@@ -288,6 +289,9 @@ final class AppSettings {
     @UserPreference(key: UserDefaultsKeys.createMediaCaptionsEnabled, defaultValue: false, storageType: .userDefaults(store))
     var createMediaCaptionsEnabled
     
+    @UserPreference(key: UserDefaultsKeys.mediaBrowserEnabled, defaultValue: false, storageType: .userDefaults(store))
+    var mediaBrowserEnabled
+    
     #endif
     
     // MARK: - Shared

ElementX/Sources/Application/Application.swift

@@ -42,11 +42,11 @@ struct Application: App {
                         openURLInSystemBrowser($0)
                     }
                 }
-                .onContinueUserActivity("INStartVideoCallIntent", perform: { userActivity in
+                .onContinueUserActivity("INStartVideoCallIntent") { userActivity in
                     // `INStartVideoCallIntent` is to be replaced with `INStartCallIntent`
                     // but calls from Recents still send it ¯\_(ツ)_/¯
                     appCoordinator.handleUserActivity(userActivity)
-                })
+                }
                 .task {
                     appCoordinator.start()
                 }