view.php clean up.

This is informational - not a blocker for plugins db approval, just a few tips for some tidier code...

1. https://gitlab.com/isard/plugin-moodle/-/blob/main/view.php#L30 you don't need to call: global $DB, $PAGE, $OUTPUT;

those things are already there straight after including config.php

2. you should be able to delete this line: https://gitlab.com/isard/plugin-moodle/-/blob/main/view.php#L74

Moodle bundles the styles.css files from all plugins into a single css file for caching in the browser - it's already automatically included in the page.