Add initial bug report template

Author: JerrySmidt

.github/ISSUE_TEMPLATE/bug_report.md

@@ -0,0 +1,35 @@
+---
+name: Bug report
+about: Create a report to help us improve
+title: ''
+labels: bug
+assignees: ''
+
+---
+
+⚠️ **Before submitting**:
+* Verify the issue persists in the *most recent* module version.
+* Consider [contacting Postcode.nl](mailto:[email protected]). Especially if you have a staging or testing environment to share.
+* Make sure the issue isn't already reported to avoid duplicates.
+
+🪲 **Describe the bug**
+* A clear and concise description of the bug.
+* Include relevant error messages from browser console and/or logs.
+
+🔄 **To Reproduce**
+Describe steps to reproduce the behaviour.
+
+✅ **Expected behaviour**
+A clear and concise description of what you expected to happen.
+
+📸 **Screenshots**
+If applicable, add screenshots to help explain your problem.
+
+⚙️ **Environment**
+* Magento version and edition (Enterprise not currently supported).
+* Other checkout-related modules.
+* Any relevant Magento/module configuration.
+* PHP version (if it's a backend issue).
+
+💡 **Additional context**
+Add any other context that may be helpful.