Update issue templates

.github/ISSUE_TEMPLATE/bug_report.md

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+---
+name: Bug report
+about: Create a report to help us improve
+title: ''
+labels: ''
+assignees: ''
+
+---
+
+**Describe the bug**
+A clear and concise description of what the bug is.
+
+**To Reproduce**
+Steps to reproduce the behavior:
+
+**Screenshots or Logs**
+If applicable, add screenshots or log files to help explain your problem.
+
+**Other information (please complete the following information):**
+ - Device: [e.g. IPhone, Android, PC]
+ - OS: [e.g. Ubuntu 16.04, Android Pie, Windows 10]
+ - Loki messenger Version or Git commit hash: