Update issue templates

.github/ISSUE_TEMPLATE/bug_report.md

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+---
+name: Bug report
+about: Something in dwl isn't working correctly
+title: ''
+labels: 'Type: bug'
+assignees: ''
+
+---
+
+

.github/ISSUE_TEMPLATE/enhancement-idea.md

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+---
+name: Enhancement idea
+about: Suggest a feature or improvement
+title: ''
+labels: 'Type: enhancement'
+assignees: ''
+
+---
+
+