Decode IDNA in PreviewCard (#2781)

app/javascript/styles/components.scss

@@ -1818,6 +1818,12 @@ button.icon-button.active i.fa-retweet {
   color: $color3;
 }
 
+.status-card__host {
+  display: block;
+  margin-top: 5px;
+  font-size: 13px;
+}
+
 .status-card__image {
   flex: 0 0 100px;
   background: lighten($color1, 8%);