Rework the presentation of the media browser quick look view to use SwiftUI. (#3619)

* Embed the media preview quick look inside a full screen cover

With a zoom transition on iOS 18.

* Use a the representable coordinator properly.

* Fix a bug with the toolbar appearance.

* Format

* Try prevent the zoom transition being upside down.

* Fix the snapshot test configuration.

ElementX/Sources/Screens/MediaEventsTimelineScreen/MediaEventsTimelineScreenCoordinator.swift

@@ -21,7 +21,7 @@ struct MediaEventsTimelineScreenCoordinatorParameters {
 }
 
 enum MediaEventsTimelineScreenCoordinatorAction {
-    case viewInRoomTimeline(TimelineItemIdentifier)
+    case viewItem(TimelineMediaPreviewContext)
 }
 
 final class MediaEventsTimelineScreenCoordinator: CoordinatorProtocol {
@@ -68,8 +68,8 @@ final class MediaEventsTimelineScreenCoordinator: CoordinatorProtocol {
         viewModel.actionsPublisher
             .sink { [weak self] action in
                 switch action {
-                case .viewInRoomTimeline(let itemID):
-                    self?.actionsSubject.send(.viewInRoomTimeline(itemID))
+                case .viewItem(let previewContext):
+                    self?.actionsSubject.send(.viewItem(previewContext))
                 }
             }
             .store(in: &cancellables)