Update [Autocomplete Deluxe] module from ~1.0 to ~2.0

Needs work to change to the latest release after committing the patch.

Released Autocomplete Deluxe 2.0.0-rc1
https://www.drupal.org/project/autocomplete_deluxe/releases/2.0.0-rc1

• Issue #3152377 by Mohammed J. Razem: Started a 2.0.x branch for Autocomplete Deluxe to support Drupal 9
• Issue #3150551 by RajabNatshah: Fixed composer file to match the Drupal 9 full project, not the sandbox
• Issue #3122933 by Stefdewa, Vinay15: Drupal 9 compatibility
• Issue #3104749 by ankushgautam76@gmail.com, ash2303, RajabNatshah, edwardchiapet: Fixed Drupal coding standard and Drupal Practice
• Issue #3096033 by ataimist, Omar Alahmed, edwardchiapet: Fixed Autocomplete stopped working issue in localhost environment
• Issue #3071352 by Jabb, edwardchiapet: Fixed t() calls should be avoided in classes, use DI and $this->t() instead