github bug_report: Migrate template to YAML

.github/ISSUE_TEMPLATE/bug_report.md

@@ -1,11 +0,0 @@
----
-name: Bug report
-about: Report an unexpected behaviour with the editor
-labels: bug
----
-
-### Steps <!-- how to reproduce the issue? -->
-
-### Outcome <!-- what is the result of the above steps? -->
-
-### Expected <!-- what should have been the result of the above steps? -->

.github/ISSUE_TEMPLATE/bug_report.yml

@@ -0,0 +1,28 @@
+name: Bug report
+description: Report an unexpected behaviour with the editor
+labels: bug
+title: "[BUG] "
+body:
+
+    - type: textarea
+      attributes:
+          label: "Reproducer"
+          description: "What are the steps to follow to reproduce the issue?"
+          placeholder: |
+              If any specific configuration or environment settings are required to reproduce the issue, also describe them here.
+      validations:
+        required: true
+
+    - type: textarea
+      attributes:
+          label: "Outcome"
+          description: "What is the outcome of the reproducing steps above?"
+      validations:
+        required: true
+
+    - type: textarea
+      attributes:
+          label: "Expectations"
+          description: "What was the expected outcome of the reproducing steps above?"
+      validations:
+        required: true