Add Simplified Chinese translation for the panel (#1263)

* Add Simplified Chinese translation for the panel

* Update passwords.php

* The pterodactyl theme incomplete translation.Part 1.

* Deleteing pterodactyl theme translation.

resources/lang/cn/auth.php

@@ -0,0 +1,22 @@
+<?php
+
+return [
+    'not_authorized' => '您无权执行此操作。',
+    'auth_error' => '尝试登录时发生错误.',
+    'authentication_required' => '需要认证才能继续操作',
+    'remember_me' => '记住我',
+    'sign_in' => '登陆',
+    'forgot_password' => '忘记密码',
+    'request_reset_text' => '忘记密码? 请在下方填入您的Email.',
+    'reset_password_text' => '重设您账户的密码.',
+    'reset_password' => '重设密码',
+    'email_sent' => '一封帮助您重置密码的电子邮件已发出，请查收并按提示操作（如未收到请检查垃圾箱）',
+    'failed' => '用户名或密码错误, 或者两步验证失败.',
+    'throttle' => '太多次登陆失败. 请在 :seconds 秒后尝试',
+    'password_requirements' => '密码至少包含大写字母，小写字母，数字，并且在8位以上.',
+    'request_reset' => '查找账户',
+    '2fa_required' => '两步验证',
+    '2fa_failed' => '两步验证密码错误',
+    'totp_failed' => '错误的TOTP验证.',
+    '2fa_must_be_enabled' => '管理员要求您的账户必须开启两步验证才能使用此面板.',
+];