Set visible ranges on the home screen sliding sync view (#342)

* Set visible ranges on the home screen sliding sync view
* Prevent the visible items from being updated while in search mode
* Enable diffs on invalidations as they seem to fix duplicated events in the home screen room list
* Promoted some diffing logs to info from verbose

ElementX/Sources/Screens/HomeScreen/HomeScreenViewModel.swift

@@ -115,6 +115,8 @@ class HomeScreenViewModel: HomeScreenViewModelType, HomeScreenViewModelProtocol
             callback?(.verifySession)
         case .skipSessionVerification:
             state.showSessionVerificationBanner = false
+        case .updatedVisibleItemIdentifiers(let identifiers):
+            updateVisibleRange(visibleItemIdentifiers: identifiers)
         }
     }
     
@@ -189,4 +191,20 @@ class HomeScreenViewModel: HomeScreenViewModelType, HomeScreenViewModelProtocol
         state.rooms = rooms
         roomsForIdentifiers = newRoomsForIdentifiers
     }
+    
+    private func updateVisibleRange(visibleItemIdentifiers items: Set<String>) {
+        let result = items.compactMap { itemIdentifier in
+            state.rooms.firstIndex { $0.id == itemIdentifier }
+        }.sorted()
+        
+        guard !result.isEmpty else {
+            return
+        }
+        
+        guard let lowerBound = result.first, let upperBound = result.last else {
+            return
+        }
+        
+        userSession.clientProxy.roomSummaryProvider?.updateVisibleRange(lowerBound...upperBound)
+    }
 }