#93: Add a sync limit of 20 and prefill rooms when loading the last message.

Update the SDK to 1.0.13-alpha.

ElementX/Sources/Services/Room/RoomProxy.swift

@@ -67,6 +67,10 @@ class RoomProxy: RoomProxyProtocol {
         room.topic()
     }
     
+    var isJoined: Bool {
+        room.membership() == .joined
+    }
+    
     var isDirect: Bool {
         room.isDirect()
     }

ElementX/Sources/Services/Room/RoomSummary/RoomSummary.swift

@@ -141,7 +141,8 @@ class RoomSummary: RoomSummaryProtocol {
             return
         }
         
-        switch await roomProxy.paginateBackwards(count: 1) {
+        // Pre-fill the room with some messages and use the last message in the response.
+        switch await roomProxy.paginateBackwards(count: UInt(ClientProxy.syncLimit)) {
         case .success:
             lastMessage = await eventBriefFactory.buildEventBriefFor(message: roomProxy.messages.last)
         case .failure(let error):