Add setting to disable keyEnabled in jPlayer

Problem/Motivation

When editing content in Layout Builder in a field with a CKEditor formatted long text field on a page with a jPlayer AudioField on it, you can no longer use the p m f l . , keys because they are bound to media functions (a couple more don't work if there's a playlist: s [ ]). Trying to type a 'p' will randomly trigger the first jPlayer instance to start playing, even if you're deep in a set of modal windows, which is very confusing when it first happens.

According to the jPlayer development guide, I think the default setting is supposed to be FALSE, but the key commands are functioning nonetheless.

Steps to reproduce

Proposed resolution

Remaining tasks

User interface changes

API changes

Data model changes