chore(admin): add github issue template for bug report

.github/ISSUE_TEMPLATE/bug_report.md

@@ -0,0 +1,38 @@
+---
+name: Bug report
+about: Create a report to help us improve Postal and fix issues.
+title: ''
+labels: bug
+assignees: ''
+
+---
+
+## Describe the bug
+
+A clear and concise description of what the bug is.
+
+## To Reproduce
+
+1. Go to '...'
+2. Click on '....'
+3. Scroll down to '....'
+4. See error
+
+## Expected behaviour
+
+A clear and concise description of what you expected to happen.
+
+## Screenshots
+
+If applicable, add screenshots to help explain your problem.
+
+## Environment details 
+
+ - OS: [e.g. iOS]
+ - Browser [e.g. chrome, safari]
+ - Version [e.g. 22]
+ - Type [e.g. desktop, mobile etc...]
+
+## Additional information/context
+
+Add any other context about the problem here.