docs: update pull request template

- Remove unnecessary comments and improve readability
- Add status section for contributors to indicate PR readiness
- Simplify description and motivation sections
- Remove duplicated chore item in the checklist

Author: fulleni

.github/PULL_REQUEST_TEMPLATE.md

@@ -1,10 +1,6 @@
-<!--
-  Thanks for contributing!
+## Status
 
-  Provide a description of your changes below and a general summary in the title
-
-  Please look at the following checklist to ensure that your PR can be accepted quickly:
--->
+**READY/IN DEVELOPMENT/HOLD**
 
 ## Description
 
@@ -20,4 +16,4 @@
 - [ ] 🧹 Code refactor
 - [ ] ✅ Build configuration change
 - [ ] 📝 Documentation
-- [ ] 🗑️ Chore
+- [ ] 🗑️ Chore