Update bug issue template (#922)

* Update bug issue template

Add text input to bug issue template for providingi link to
reproduction

* Apply suggestions from code review

---------

Co-authored-by: Erika <3019731+Princesseuh@users.noreply.github.com>

.github/ISSUE_TEMPLATE/---01-bug-report.yml

@@ -29,3 +29,12 @@ body:
         5. Error! Describe what went wrong (and what was expected instead)...
     validations:
       required: true
+  - type: input
+    attributes:
+      label: Link to Minimal Reproducible Example
+      description: |
+        Provide a link to a minimal reproducible example. If the error only happens in one file, please specify in which file and where precisely does the error happen.
+        If the file is in a private repository you can share a minimal version by copying the file's content in this issue, or using a service like [GitHub Gist](https://gist.github.com/) or [Pastebin](https://pastebin.com).
+      placeholder: 'https://github.com/user/repo/blob/main/src/pages/index.astro'
+    validations:
+      required: true