Add inline forms styles to insert-link modal

admin/client/src/components/Form/Form.scss

@@ -293,6 +293,7 @@ input.radio {
 // Apply .form--inline to forms to state whether or not the label and input should become inline
 // @include form-responsive(turns inline, stops being full width, reduced portion of screen width is used)
 .form--inline,
+.ss-insert-link .form__fieldgroup,
 .cms-edit-form:not(.AssetAdmin) {
   @include form-responsive(lg, xl, xxl);
 }