fix: undefined index pos

src/QUI/Bricks/Controls/Slider/Promoslider.html

@@ -11,7 +11,7 @@
 </noscript>
 <div class="quiqqer-bricks-promoslider-slide-desktop">
     {foreach $desktopSlides as $key => $slide}
-    <div class="quiqqer-bricks-promoslider-slide {$slide.pos} quiqqer-bricks-promoslider-sl{$key}"
+    <div class="quiqqer-bricks-promoslider-slide quiqqer-bricks-promoslider-sl{$key}"
          {if $key== 0}
             style="display: inline"
          {else}