Updates for new CSS nesting changes that affect SCSS nesting deprecat…

…ions

Adding protected in PreprocessRegionGroup

Use latest build tools.

...

Aeon drush update

- Updates drupal_get_path with extension.list.theme for Drupal10

Styling changes to valerian.

Reply on exo theme colors for primary and secondary.

Gulp updates.

Restore previous code as this caused actions to bind to all sorts of …

…unrelated inputs.

Merge pull request #2 from weberjacob/develop

Updates README with changes for composer install path