Sync with Learnweb's centralized pull request template

Author: github-actions[bot]

.github/PULL_REQUEST_TEMPLATE.md

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+> **Note:** Please fill out all relevant sections and remove irrelevant ones.
+### 🔀 Purpose of this PR:
+
+- [ ] Fixes a bug
+- [ ] Updates for a new Moodle version
+- [ ] Adds a new feature of functionality
+- [ ] Improves or enhances existing features
+- [ ] Refactoring: restructures code for better performance or maintainability
+- [ ] Testing: add missing or improve existing tests
+- [ ] Miscellaneous: code cleaning (without functional changes), documentation, configuration, ...
+
+---
+
+### 📝 Description:
+
+Please describe the purpose of this PR in a few sentences.
+
+- What feature or bug does it address?
+- Why is this change or addition necessary?
+- What is the expected behavior after the change?
+
+---
+
+### 📋 Checklist
+
+Please confirm the following (check all that apply):
+
+- [ ] I have `phpunit` and/or `behat` tests that cover my changes or additions.
+- [ ] Code passes the code checker without errors and warnings.
+- [ ] Code passes the moodle-ci/cd pipeline on all supported Moodle versions or the ones the plugin supports.
+- [ ] Code does not have `var_dump()` or `var_export` or any other debugging statements (or commented out code) that
+  should not appear on the productive branch.
+- [ ] Code only uses language strings instead of hard-coded strings.
+- [ ] If there are changes in the database: I updated/created the necessary upgrade steps in `db/upgrade.php` and
+  updated the `version.php`.
+- [ ] If there are changes in javascript: I build new `.min` files with the `grunt amd` command.
+- [ ] If it is a Moodle update PR: I read the release notes, updated the `version.php` and the `CHANGES.md`.
+  I ran all tests thoroughly checking for errors. I checked if bootstrap had any changes/deprecations that require
+  changes in the plugins UI.
+
+---
+
+### 🔍 Related Issues
+
+- Related to #[IssueNumber]
+
+---
+
+### 🧾📸🌐 Additional Information (like screenshots, documentation, links, etc.)
+
+Any other relevant information.
+
+---