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: ''
+
+---
+
+**Type of issue**
+
+- [ ] A bug
+- [ ] A performance problem
+
+**Problem description**
+
+<!-- Please describe your problem in details. -->
+<!-- You can copy-paste the console logs (ctrl+shift+i in Obsidian) and attach screenshots -->
+
+**Your environment**
+
+- Operating system: 
+- Number of notes in your vault (approx.):
+- Version of Obsidian:
+- Other plugins that may be related to the issue: