docs: Update issue templates

.github/ISSUE_TEMPLATE/bug_report.md

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+---
+name: Bug report
+about: 上报 Bug
+title: "[BUG]"
+labels: bug, help wanted
+assignees: ''
+
+---
+
+**描述你发现的 Bug**
+A clear and concise description of what the bug is.
+
+**如何复现**
+Steps to reproduce the behavior:
+1. Go to '...'
+2. Click on '....'
+3. Scroll down to '....'
+4. See error
+
+**原本的预期行为**
+A clear and concise description of what you expected to happen.
+
+**截图**
+If applicable, add screenshots to help explain your problem.
+
+**Desktop (please complete the following information):**
+ - OS: [e.g. iOS]
+ - Browser [e.g. chrome, safari]
+ - Version [e.g. 22]
+
+**Smartphone (please complete the following information):**
+ - Device: [e.g. iPhone6]
+ - OS: [e.g. iOS8.1]
+ - Browser [e.g. stock browser, safari]
+ - Version [e.g. 22]
+
+**额外信息**
+Add any other context about the problem here.

.github/ISSUE_TEMPLATE/feature_request.md

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+---
+name: Feature request
+about: 为这个项目提出一些建议吧
+title: "[FEAT]"
+labels: enhancement
+assignees: ''
+
+---
+
+**你请求的新功能是否和某个问题有关？描述这个问题（可留空）**
+A clear and concise description of what the problem is. Ex. I'm always frustrated when [...]
+
+**描述一下你希望的实现方法（可留空）**
+A clear and concise description of what you want to happen.
+
+**描述一下你觉得可行的替代方法（可留空）**
+A clear and concise description of any alternative solutions or features you've considered.
+
+**额外信息（可留空）**
+Add any other context or screenshots about the feature request here.