Fixed a typo in filename and renamed table for consistency (#1279)

* Fixed a typo in filename and renamed table for consistency

* Added update file to rename the tables

* Drop old tables if they exist and create new ones if they don't exist already

data/sql/playerbots/base/playerbots_account_keys.sql

@@ -0,0 +1,7 @@
+DROP TABLE IF EXISTS `playerbots_account_keys`;
+
+CREATE TABLE `playerbots_account_keys` (
+    `account_id` INT PRIMARY KEY,
+    `security_key` VARCHAR(255) NOT NULL,
+    `created_at` TIMESTAMP DEFAULT CURRENT_TIMESTAMP
+) ENGINE=INNODB DEFAULT CHARSET=latin1;