Update issue templates

Author: YousefED

.github/ISSUE_TEMPLATE/bug_report.md

@@ -0,0 +1,18 @@
+---
+name: Bug report
+about: Create a report to help us improve
+title: ''
+labels: bug
+assignees: ''
+
+---
+
+**Describe the bug**
+
+**To Reproduce**
+<links to a sandbox or clear steps to reproduce are super helpful!
+
+**System**
+<which node / npm version / blocknote version>
+
+- [] I'm a sponsor and would appreciate if you could look into this sooner than later 💖