refactor: 更新脚本和配置文件的下载链接

- 将下载链接从 https://i.sugarscat.cn/ 更改为 https://i.37point2.cn/
- 更新了多个文件中的下载指令，包括 README.md、deploy.sh 和 nginx.conf
- 删除了 nginx/note.sugarscat.cn 相关的文件和配置

docker/compose/rustdesk/README.md

@@ -11,7 +11,7 @@
 1. 下载 docker-compose.yml
 
     ```bash
-    curl -fSL https://i.sugarscat.cn/i/script/raw/main/docker/compose/rustdesk/docker-compose.yml > docker-compose.yml
+    curl -fSL https://i.37point2.cn/i/script/raw/main/docker/compose/rustdesk/docker-compose.yml > docker-compose.yml
     ```
 
 ## docker-compose 部署