Tidy up the naming of spaces a bit more. (#4955)

* Rename SpaceListScreen to SpacesScreen

To avoid confusion with the SpaceRoomListProxy.

* Rename SpaceExplorerFlowCoordinator to SpacesTabFlowCoordinator and ChatsFlowCoordinator to ChatsTabFlowCoordinator.

ElementX/Sources/Screens/Spaces/SpacesScreen/SpacesScreenModels.swift

@@ -0,0 +1,39 @@
+//
+// Copyright 2025 Element Creations Ltd.
+// Copyright 2025 New Vector Ltd.
+//
+// SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial.
+// Please see LICENSE files in the repository root for full details.
+//
+
+import Foundation
+
+enum SpacesScreenViewModelAction {
+    case selectSpace(SpaceRoomListProxyProtocol)
+    case showSettings
+}
+
+struct SpacesScreenViewState: BindableState {
+    let userID: String
+    var userDisplayName: String?
+    var userAvatarURL: URL?
+    
+    var topLevelSpaces: [SpaceServiceRoomProtocol]
+    var selectedSpaceID: String?
+    
+    var isCreateSpaceEnabled: Bool
+    
+    var bindings: SpacesScreenViewStateBindings
+}
+
+struct SpacesScreenViewStateBindings {
+    var isPresentingFeatureAnnouncement = false
+}
+
+enum SpacesScreenViewAction {
+    case spaceAction(SpaceRoomCell.Action)
+    case showSettings
+    case screenAppeared
+    case featureAnnouncementAppeared
+    case createSpace
+}