🎨 Improve PR template (#16919)

.github/PULL_REQUEST_TEMPLATE.md

@@ -1,14 +1,32 @@
-## Feature or bug? 特性或者缺陷？
+## Description / 描述
 
-If you want to contribute a feature or bug fix, please submit an issue first. After a full discussion in the community, we will decide whether to make the change. Do not submit a contribution code directly, otherwise it may be rejected.
-如果你想贡献一个特性或者缺陷修复，请先提交一个 issue。在社区充分讨论后，我们会决定是否进行变更。不要直接提交一个贡献代码，否则可能会被拒绝。
+<!--
+Please provide a summary of the change and the issue being fixed. Include relevant motivation and context.
+请说明更改的摘要以及修复了哪个问题，包含相关的动机和上下文。
+-->
 
-## Multilingual or copywriting? 多语言或者文案？
+## Type of change / 变更类型
 
-Please submit directly, we will evaluate.
-请直接提交，我们会进行评估。
+- [ ] Bug fix
+      缺陷修复
+- [ ] New feature
+      新功能  
+- [ ] Text updates or new language additions
+      修改文案或增加新语言
 
-## Dev branch!
+<!--
+If you want to contribute a feature or bug fix, please submit an issue first. After full community discussion, we will decide whether to implement the change. Do not submit code directly, otherwise it may be rejected.
+如果你想贡献一个特性或者缺陷修复，请先提交一个 issue。在社区充分讨论后，我们会决定是否进行变更。不要直接提交贡献代码，否则可能会被拒绝。
 
-Any changes should be submitted to the dev branch.
-任何改动，请提交到 dev 分支。
+If your contribution involves text updates or adding new languages, please submit directly, and we will evaluate.
+如果你的贡献涉及文案修改或增加新语言，请直接提交，我们会进行评估。
+-->
+
+## Checklist / 检查清单
+
+- [ ] I have performed a self-review of my own code
+      我对自己的代码进行了自我审查
+- [ ] I have full rights to the submitted code and agree to license it under this project's AGPL-3.0 license
+      我拥有所提交代码的完整权利，并同意其以本项目的 AGPL-3.0 许可证授权
+- [ ] PR is submitted to the `dev` branch and has no merge conflicts
+      PR 提交到 `dev` 分支，并且没有合并冲突