chore(GitHub): update PULL_REQUEST_TEMPLATE

.github/PULL_REQUEST_TEMPLATE.md

@@ -1,7 +1,35 @@
 <!--
-Thank you for sending the PR!
+  Thank you for sending the PR!
 
-If you changed any code, please provide us with clear instructions on how you verified your changes work. Bonus points for screenshots!
+  If you changed any code,
+  please provide us with clear instructions on how you verified your changes work.
+  Bonus points for screenshots!
 
-Happy contributing!
+  Happy contributing!
 -->
+
+This PR contains a:
+
+- [ ] **bugfix**
+- [ ] new **feature**
+- [ ] **code refactor**
+- [ ] **test update** <!-- if bug or feature is checked, this should be too -->
+- [ ] **typo fix**
+- [ ] **metadata update**
+
+## Motivation / Use-Case
+
+<!--
+  Please explain the motivation or use-case for your change.
+  What existing problem does the PR solve?
+  If this PR addresses an issue, please link to the issue.
+-->
+
+## Breaking Changes
+
+<!--
+  If this PR introduces a breaking change,
+  please describe the impact and a migration path for existing applications.
+-->
+
+## Additional Info