fix: update cn domain

Author: Miloas

README.md

@@ -23,7 +23,7 @@
 - English Document | [中文文档](https://github.com/LeetCode-OpenSource/vscode-leetcode/blob/master/docs/README_zh-CN.md)
 
 ## ❗️ Attention ❗️- Workaround to login to LeetCode endpoint
-> Note: If you are using `leetcode-cn.com`, you can just ignore this section.
+> Note: If you are using `leetcode.cn`, you can just ignore this section.
 
 Recently we observed that [the extension cannot login to leetcode.com endpoint anymore](https://github.com/LeetCode-OpenSource/vscode-leetcode/issues/478). The root cause of this issue is that leetcode.com changed its login mechanism and so far there is no ideal way to fix that issue.
 
@@ -63,7 +63,7 @@ Thanks for [@yihong0618](https://github.com/yihong0618) provided a workaround wh
 
 - The supported endpoints are:
   - **leetcode.com**
-  - **leetcode-cn.com**
+  - **leetcode.cn**
 
   > Note: The accounts of different endpoints are **not** shared. Please make sure you are using the right endpoint. The extension will use `leetcode.com` by default.
 

docs/README_zh-CN.md

@@ -23,7 +23,7 @@
 - [English Document](https://github.com/LeetCode-OpenSource/vscode-leetcode#requirements) | 中文文档
 
 ## ❗️ 注意 ❗️- 无法登录 LeetCode 节点的临时解决办法
-> 注意：如果使用的是 `leetcode-cn.com` 账户，可以跳过此段落。
+> 注意：如果使用的是 `leetcode.cn` 账户，可以跳过此段落。
 
 近期我们发现插件出现了[无法登录 leetcode.com 节点的问题](https://github.com/LeetCode-OpenSource/vscode-leetcode/issues/478)。原因是因为近期 leetcode.com 改变了登录机制，目前我们暂时没有找到解决该问题的完美解决方案。
 
@@ -64,7 +64,7 @@
 
 - 目前可切换的版本有:
   - **leetcode.com**
-  - **leetcode-cn.com**
+  - **leetcode.cn**
 
   > 注意：两种版本的 LeetCode 账户并**不通用**，请确保当前激活的版本是正确的。插件默认激活的是**英文版**。
 

src/commands/plugin.ts

@@ -21,7 +21,7 @@ export async function switchEndpoint(): Promise<void> {
         },
         {
             label: `${isCnEnabled ? "$(check) " : ""}力扣`,
-            description: "leetcode-cn.com",
+            description: "leetcode.cn",
             detail: `启用中国版 LeetCode`,
             value: Endpoint.LeetCodeCN,
         },

src/utils/uiUtils.ts

@@ -48,7 +48,7 @@ export async function promptForSignIn(): Promise<void> {
             break;
         case DialogOptions.singUp:
             if (getLeetCodeEndpoint()) {
-                openUrl("https://leetcode-cn.com");
+                openUrl("https://leetcode.cn");
             } else {
                 openUrl("https://leetcode.com");
             }