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/Screens/Settings/DeveloperOptionsScreen/DeveloperOptionsScreenModels.swift

@@ -51,6 +51,7 @@ protocol DeveloperOptionsProtocol: AnyObject {
     var elementCallBaseURLOverride: URL? { get set }
     var knockingEnabled: Bool { get set }
     var createMediaCaptionsEnabled: Bool { get set }
+    var mediaBrowserEnabled: Bool { get set }
 }
 
 extension AppSettings: DeveloperOptionsProtocol { }

ElementX/Sources/Screens/Settings/DeveloperOptionsScreen/View/DeveloperOptionsScreen.swift

@@ -49,7 +49,7 @@ struct DeveloperOptionsScreen: View {
                 }
             }
             
-            Section("Timeline") {
+            Section("Room") {
                 Toggle(isOn: $context.hideTimelineMedia) {
                     Text("Hide image & video previews")
                 }
@@ -57,6 +57,10 @@ struct DeveloperOptionsScreen: View {
                 Toggle(isOn: $context.createMediaCaptionsEnabled) {
                     Text("Allow creation of media captions")
                 }
+                
+                Toggle(isOn: $context.mediaBrowserEnabled) {
+                    Text("Enable the media browser")
+                }
             }
             
             Section("Join rules") {

ElementX/Sources/Screens/Settings/NotificationSettingsEditScreen/NotificationSettingsEditScreenViewModel.swift

@@ -123,7 +123,7 @@ class NotificationSettingsEditScreenViewModel: NotificationSettingsEditScreenVie
             guard !Task.isCancelled else { return }
             
             let filteredRoomsSummary = roomSummaryProvider.roomListPublisher.value.filter { summary in
-                roomsWithUserDefinedRules.contains(where: { summary.id == $0 })
+                roomsWithUserDefinedRules.contains { summary.id == $0 }
             }
             
             var roomsWithUserDefinedMode: [NotificationSettingsEditScreenRoom] = []
@@ -142,7 +142,7 @@ class NotificationSettingsEditScreenViewModel: NotificationSettingsEditScreenVie
             }
             
             // Sort the room list
-            roomsWithUserDefinedMode.sort(by: { $0.name.localizedCompare($1.name) == .orderedAscending })
+            roomsWithUserDefinedMode.sort { $0.name.localizedCompare($1.name) == .orderedAscending }
             
             state.roomsWithUserDefinedMode = roomsWithUserDefinedMode
         }