Remove footnotes dependency on BlockPlus module
The footnotes feature depends on a hardwired module reference to BlockPlus in plugin.js
which causes the footnotes feature to fail when used alone.
My approach to resolving was to apply a patch to the andykirk/CKEditorFootnotes
dependency using cweagans/composer-patches
composer plugin.
I applied this patch to the latest release: v1.2.0
.