improve issue templates

.github/dev_bug_report.md

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+---
+name: Dev Bug Report
+about: Create a report to help us improve
+title: ''
+labels: stat_backlog, type_bug
+assignees: ''
+
+---
+
+# Bug Description
+A clear and concise description of what the bug is.
+
+# How to Reproduce
+
+Steps to reproduce the behavior:
+
+1. Go to '...'
+2. Click on '....'
+3. Scroll down to '....'
+4. See error
+
+## Minimal Code Example
+
+```js
+// your code ...
+```
+
+# Expected Behavior
+A clear and concise description of what you expected to happen.
+
+# Screenshots
+If applicable, add screenshots to help explain your problem.
+
+# Additional Information
+Add any other context about the problem here.

.github/dev_feature_request.md

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+---
+name: Dev Feature Request
+about: Suggest an idea for this project
+title: ''
+labels: stat_backlog, type_feature
+assignees: ''
+
+---
+
+# What is the feature you request
+* A clear and concise description of what the problem is. Ex. I'm always frustrated when [...]
+* A clear and concise description of what you want to happen.
+
+# Alternatives
+A clear and concise description of any alternative solutions or features you've considered.
+
+# Additional Information
+Add any other context or screenshots about the feature request here.