Add support for Gin theme & paragraphs contrib module

Problem/Motivation

The remove button is positioned over the magnifying glass pictogram.

Steps to reproduce

1. install Gin Theme and set as admin Theme
2. Install paragraphs and create a paragraph type : multiple entity reference (widget autocomplete)
3. Set the paragraph type in a content as a field
4. Install Multiple Fields Remove Button

Proposed resolution

Based on the proposal given in the issue #3372779 ✨ Add support for Gin theme Closed: works as designed : Add some theming that should be added if Gin is the active theme & the autocomplete field goes through a paragraph type.

CSS example:

/* multiple-fields-remove-button.widget.css */
.field--widget-paragraphs .has-multiple-fields-remove-button .multiple-fields-remove-button {
    right: 40px;
}
/* gin.css */
.field--widget-paragraphs .has-multiple-fields-remove-button .form-autocomplete {
  padding-inline-end: 60px;
}