Update issue templates

Author: vishalnarkhede

.github/ISSUE_TEMPLATE/bug_report.md

@@ -0,0 +1,33 @@
+---
+name: Bug report
+about: Create a report to help us improve
+title: ''
+labels: bug
+assignees: vishalnarkhede
+
+---
+
+**Describe the bug**
+A clear and concise description of what the bug is.
+
+**To Reproduce**
+Steps to reproduce the behavior:
+1. Go to '...'
+2. Click on '....'
+3. Scroll down to '....'
+4. See error
+
+**Expected behavior**
+A clear and concise description of what you expected to happen.
+
+**Dev environment info (please complete the following information):**
+ - Package version (stream-chat-react-native/stream-chat-expo)
+ - Device/Emulator (android/ios)
+ - OS version
+
+**Additional context**
+Add any other context about the problem here.
+
+
+**Screenshots**
+If applicable, add screenshots to help explain your problem.