* Feature: enqueue the jQuery library if one of the JS custom codes requires it
* Feature: code folding in the editor
* Tweak: update the "scssphp/scssphp" library to the latest 1.11.0 version
* Tweak: update the EDD Plugin Updater library
* Tweak: add instructions about the "JS Linting Options" to the Help screen
* Fix: check for the scssphp library's version. If another plugin loads an older version of scssphp, where the 'compileString' method is missing, then an error is shown
Tweak: update the EDD Plugin Updater library
* Tweak: compile SASS code with the "scssphp/scssphp" library for PHP>7.2
* Fix: show the SASS/LESS compiling errors after clicking the "Publish/Update" button
* Fix: allow a query component in the preview page's URL
* Fix: escape labels on the "Add new custom code" page
* Fix: the URL matching is now done on the encoded and decoded version of the URL
* Tweak: update the matthiasmullie/Minify library to the latest Jul 2021 commit
* Feature: Keep the last cursor position in the editor and let the editor get focus when the page loads