fix(FEC-9111): seekbar doesnt work in LG TV (#386)

seekbar doesnt work in LG TV

Author: Yuvalke

src/components/seekbar/seekbar.js

@@ -339,8 +339,16 @@ class SeekBarControl extends Component {
    * @private
    */
   _getTransformX(element: HTMLElement): number {
-    const transformValues = getComputedStyle(element).transform.match(/-?\d+/g);
+    const computedStyle = getComputedStyle(element);
     // [scaleX(),skewY(),skewX(),scaleY(),translateX(),translateY()]
+    const transform =
+      computedStyle.getPropertyValue('transform') ||
+      computedStyle.getPropertyValue('-webkit-transform') ||
+      computedStyle.getPropertyValue('-moz-transform') ||
+      computedStyle.getPropertyValue('-ms-transform') ||
+      computedStyle.getPropertyValue('-o-transform');
+
+    const transformValues = transform.match(/-?\d+/g);
     let translateXVal = 0;
     if (transformValues && transformValues.length > 0) {
       translateXVal = parseFloat(transformValues[4]);