Use the new preview screen when tapping media on the room and pinned events screens. (#3736)

* Use the new TimelineMediaPreview modifier on the room and pinned timeline screens.

* Use the same presentation logic for all timeline media previews.

* Fix a bug with the detection of the timeline end.

* Send pagination requests from the media preview screen.

* Add SwiftLint to the Danger workflow (it is no longer installed on the runner).

* Put SwiftLint back on all of the GitHub runners too.

* Set the function_parameter_count lint rule to 10.

* Make sure to clean-up any previews when the coordinator is done.

* Handle the viewInRoomTimeline action more appropriately.

ElementX/Sources/Screens/RoomScreen/View/RoomScreen.swift

@@ -94,7 +94,7 @@ struct RoomScreen: View {
                 ReadReceiptsSummaryView(orderedReadReceipts: $0.orderedReceipts)
                     .environmentObject(timelineContext)
             }
-            .interactiveQuickLook(item: $timelineContext.mediaPreviewItem)
+            .timelineMediaPreview(viewModel: $roomContext.mediaPreviewViewModel)
             .track(screen: .Room)
             .onDrop(of: ["public.item", "public.file-url"], isTargeted: $dragOver) { providers -> Bool in
                 guard let provider = providers.first,