Add issue template

.github/ISSUE_TEMPLATE/bug_report.md

@@ -0,0 +1,35 @@
+---
+name: Bug report
+about: Create a report to help us improve Gochan
+title: "[BUG] "
+labels: bug
+assignees: Eggbertx
+
+---
+
+**Describe the bug**
+A clear and concise description of what the bug is.
+
+**To Reproduce**
+Steps to reproduce the behavior:
+1. Run command '...'
+2. Go to '...'
+3. Click on '....'
+4. Scroll down to '....'
+5. See error/unexpected behavior
+
+**Expected behavior**
+A clear and concise description of what you expected to happen.
+
+**Screenshots**
+If applicable, add screenshots to help explain your problem.
+
+**Environment information:**
+- OS: [e.g. Ubuntu Linux 22.04, Windows Server 2022]
+- Environment: [e.g. Vagrant, Docker, running on host]
+- Browser and version (if applicable): [e.g. Firefox, Chrome, Firefox for Android]
+- Gochan version (if running from a release): [e.g. 4.2.0]
+- Latest commit checksum and branch (if you built the code yourself): [obtained from `git rev-parse --verify HEAD`]
+
+**Additional context**
+Add any other context about the problem here.