Update database schema.

structure.sql

@@ -140,8 +140,7 @@ CREATE TABLE IF NOT EXISTS `conversation` (
   `user_id` bigint NULL DEFAULT NULL COMMENT 'User id',
   `chat_id` bigint NULL DEFAULT NULL COMMENT 'Telegram chat_id can be a the user id or the chat id ',
   `status` ENUM('active', 'cancelled', 'stopped') NOT NULL DEFAULT 'active' COMMENT 'active conversation is active, cancelled conversation has been truncated before end, stopped conversation has end',
-  `conversation_command` varchar(160) DEFAULT '' COMMENT 'Default Command to execute',
-  `conversation_name` varchar(160) NOT NULL DEFAULT '' COMMENT 'Name of the conversation can be the command name or a generic name for conversation between multiple commands',
+  `command` varchar(160) DEFAULT '' COMMENT 'Default Command to execute',
   `data` varchar(1000) DEFAULT 'NULL' COMMENT 'Data stored from command',
   `created_at` timestamp NOT NULL DEFAULT '0000-00-00 00:00:00',
   `updated_at` timestamp NOT NULL DEFAULT '0000-00-00 00:00:00',
@@ -150,7 +149,6 @@ CREATE TABLE IF NOT EXISTS `conversation` (
   KEY `user_id` (`user_id`),
   KEY `chat_id` (`chat_id`),
   KEY `status` (`status`),
-  KEY `conversation_name` (`conversation_name`), 
 
   FOREIGN KEY (`user_id`)
   REFERENCES `user` (`id`),