chore: add PR template

Author: sudo-infra-app[bot]

.github/pull_request_template.md

@@ -0,0 +1,15 @@
+ ## Issue
+_Link to the issue resolved by this PR._
+
+## Description
+_Description of the approach taken to solve the issue._
+
+## How to test
+_How to verify the changes._
+
+## Checklist
+- [ ] No redundant \`print()\` statements, commented-out code, or other remnants from the development 👀
+- [ ] New/refactored code is following same conventions as the rest of the code base 🧬
+- [ ] New/refactored code is tested ⚙
+- [ ] Documentation has been updated 🧾
+- [ ] Commits are semantic ✅