Add opportunity to create "IdChatIdentifier" with optional "threadId"

tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/ChatIdentifier.kt

@@ -30,6 +30,9 @@ sealed interface IdChatIdentifier : ChatIdentifier {
 
     companion object {
         operator fun invoke(chatId: Identifier) = ChatId(chatId)
+        operator fun invoke(chatId: Identifier, threadId: MessageThreadId?) = threadId ?.let {
+            ChatIdWithThreadId(chatId, threadId)
+        } ?: ChatId(chatId)
     }
 }