Create bug report template for PRs

Added a bug report template for pull requests.

.github/ISSUE_TEMPLATE/pull_request_template.bug_report.yml

@@ -0,0 +1,11 @@
+name: Bug report
+description: Create a report to help Termix improve
+body:
+  - type: input
+    id: title
+    attributes:
+      label: Title
+      description: Brief, descriptive title for the PR
+      placeholder: "Brief description of the PR"
+    validations:
+      required: true