misc: add issue template for bug report

.gitlab/issue_templates/bug_report.md

@@ -0,0 +1,52 @@
+## Bug Report Template
+
+> **If you have a question or are not sure about what you are about to post, please use the forums instead.**
+> **Also, check for possible duplicate reports here or in the forum before submitting this issue.**
+
+---
+
+### 1. Affected Package revision / version
+
+<!-- Example: v1.3.2, v1.2.3trisquel1, etc -->
+
+---
+
+### 2. Steps to Reproduce
+
+<!-- List the minimal steps to reproduce the issue -->
+
+1. ...
+2. ...
+3. ...
+
+---
+
+### 3. Current Behavior
+
+<!-- Describe what is happening -->
+
+---
+
+### 4. Expected Behavior *(optional)*
+
+<!-- Describe what you expected to happen instead -->
+
+---
+
+### 5. Workaround *(optional)*
+
+<!-- Is there a known workaround? -->
+
+---
+
+### 6. Suggestions, Investigation and Possible Causes *(optional)*
+
+<!-- Share any insights, code references, or debugging steps you've taken -->
+
+---
+
+### 7. Other Tests *(optional)*
+
+<!-- Any other environments or tests tried? -->
+
+---