chore: Convert PR template instructions into comments

- Move instructional text into HTML comments to avoid manual deletion
- Improve clarity and structure of the PR template

Signed-off-by: Omar <omar.brbutovic@secomind.com>

Author: OmarBrbutovic

.github/pull_request_template.md

@@ -1,19 +1,41 @@
-## [ Change title ]
+## Change Title
+
+<!--
 Describe the big picture of your changes here to communicate to the maintainers
-why we should accept this pull request. If it fixes a bug or resolves a feature
-request, be sure to link to that issue.
+why we should accept this pull request.
+
+If it fixes a bug or resolves a feature request, be sure to link to the related issue.
+Example:
+    - Fixes #123
+-->
 
 ## Checklist
-_Put an `x` in the boxes that apply. You can also fill these out after creating
-the PR. If you're unsure about any of them, don't hesitate to ask. We're here to
-help! This is simply a reminder of what we are going to look for before merging
-your code._
+
+<!--
+Put an `x` in the boxes that apply. You can fill these out after creating the PR.
+If you're unsure about any of them, don't hesitate to ask.
+This is simply a reminder of what will be checked before merging.
+-->
 
 - [ ] I have read the CONTRIBUTING.md
 - [ ] I have added tests that prove my fix is effective or that my feature works
-- [ ] I have added necessary documentation (if appropriate)
+- [ ] I have added or updated documentation (if appropriate)
+
+## Further Comments (optional)
+
+<!--
+If this is a relatively large or complex change, explain:
+    - Why you chose this solution
+    - What alternatives you considered
+    - Any trade-offs or follow-up work
+-->
+
+## Screenshots / Demos (optional)
+
+<!--
+If this PR introduces visual or UI changes, it is highly appreciated to include
+screenshots, GIFs, or a short video.
 
-## Further comments (optional)
-If this is a relatively large or complex change, kick off the discussion by
-explaining why you chose the solution you did and what alternatives you
-considered, etc...
+This helps reviewers more easily understand the changes and makes it simpler to
+track visual differences over time.
+-->