Increase the amount of public channel messages to 10 in the Chatroom List View (to calculate the last one)

app/src/main/java/com/vitorpamplona/amethyst/service/NostrChatroomListDataSource.kt

@@ -65,7 +65,7 @@ object NostrChatroomListDataSource: NostrDataSource("MailBoxFeed") {
         filter = JsonFilter(
           kinds = listOf(ChannelMessageEvent.kind),
           tags = mapOf("e" to listOf(it)),
-          limit = 1
+          limit = 10
         )
       )
     }