Use of jQuery .ajaxStop() is deprecated

Problem/Motivation

When implementing this module, the use of deprecated jQuery methods were found.

Steps to reproduce

• Look at the code at Module repo
• Review the documentation for .ajaxStop() at https://api.jquery.com/ajaxStop-shorthand/
• Notice the deprecation information

Proposed resolution

Change $(document).ajaxStop(initializeAutocomplete); to $(document).on('ajaxStop', initializeAutocomplete);

or even better, remove the dependency on jQuery
document.addEventListener('ajaxStop', initializeAutocomplete);

Remaining tasks

Update the code and then merge the request.

User interface changes

None

API changes

None

Data model changes

None