Include arrow-button in show-svg-on-hover in list-reservation class

The arrow wasn't showing when enclosed in a button. The way
show-svg-on-hover mixin works is that it receives a class of the
container. Now list-reservation mixin targets all possibilities for
containers that we use in the project.

src/stories/Library/Lists/list-reservation/list-reservation.scss

@@ -7,6 +7,7 @@ $list-reservation-space-desktop: 24px;
 
 .list-reservation {
   @include show-svg-on-hover(".list-reservation__status");
+  @include show-svg-on-hover(".arrow-button");
 
   background-color: $color__text-primary-white;
   border: 0;