fix: carousel variable-width vueComponent#3977

Author: zkwolf

components/vc-slick/src/inner-slider.js

@@ -116,7 +116,7 @@ export default {
           slideCount: children.length,
         });
         children.forEach(child => {
-          const childWidth = child.props.width.split('px')[0];
+          const childWidth = child.props.style.width;
           childrenWidths.push(childWidth);
           trackWidth += childWidth;
         });