Dynamically adjusting the visibleRoomsView's timeline limit based on the app state

ElementX/Sources/Screens/HomeScreen/HomeScreenModels.swift

@@ -14,6 +14,7 @@
 // limitations under the License.
 //
 
+import Combine
 import Foundation
 import UIKit
 
@@ -90,6 +91,8 @@ struct HomeScreenViewState: BindableState {
 struct HomeScreenViewStateBindings {
     var searchQuery = ""
     
+    var isScrolling = false
+    
     var alertInfo: AlertInfo<UUID>?
 }