chore(ci): update PR template

Author: gregfromstl

.github/pull_request_template.md

@@ -1,4 +1,12 @@
-## Problem solved
+---
+title: "[SDK/Dashboard/Portal] Feature/Fix: Concise title for the changes"
+---
 
-Short description of the bug fixed or feature added
+If you did not copy the branch name from Linear, paste the issue tag here (format is TEAM-0000):
+
+## Notes for the reviewer
+Anything important to call out? Be sure to also clarify these in your comments.
+
+## How to test
+Unit tests, playground, etc.