Make "index" available in options list elements (#1252)
Make "index" available in options list elements (#1252)

* Fix linting errors in development environment

* Make index available in options list element

Co-authored-by: Malik Dirim <46f1a0bd5592a2f9244ca321b129902a06b53e03@malikdirim.de>
monterail/vue-multiselect,monterail/vue-multiselect