Update issue templates

.github/ISSUE_TEMPLATE/bug_report.md → .github/ISSUE_TEMPLATE/confirmed-bug.md

@@ -1,6 +1,6 @@
 ---
-name: Bug report
-about: Report an issue that you have identified to be a bug
+name: Confirmed bug
+about: Report an issue that you have definititely confirmed to be a bug
 title: ''
 labels: bug
 assignees: ''

.github/ISSUE_TEMPLATE/possible-bug--needs-investigation-.md

@@ -0,0 +1,18 @@
+---
+name: Possible bug. Needs investigation.
+about: Report an issue that could be a bug but is not confirmed yet and needs investigation.
+title: ''
+labels: ''
+assignees: ''
+
+---
+
+**Version:**
+ - listmonk: [eg: v1.0.0]
+ - OS: [e.g. Fedora]
+
+**Description of the bug and steps to reproduce:**
+A clear and concise description of what the bug is.
+
+**Screenshots:**
+If applicable, add screenshots to help explain your problem.