Fix Scroll to Left on When Element Inspected in Middle

Summary:
`scrollTo` used there caused the window to scroll to the most left when a user was inspecting an element which horizontal scroll wasn't in the most left position.

This diff removes the horizontal constrain and only scroll vertically.

Reviewed By: mweststrate

Differential Revision: D23284227

fbshipit-source-id: 7c19cac7496927c631572e222cb1d635dd1f8ea4

desktop/app/src/ui/components/elements-inspector/elements.tsx

@@ -687,15 +687,14 @@ export class Elements extends PureComponent<ElementsProps, ElementsState> {
                 this.setState({scrolledElement: selected});
                 const outer = this._outerRef.current;
                 if (outer.scrollTo) {
-                  outer.scrollTo(
-                    0,
-                    this._calculateScrollTop(
+                  outer.scrollTo({
+                    top: this._calculateScrollTop(
                       outer.offsetHeight,
                       outer.scrollTop,
                       selectedRow.offsetHeight,
                       selectedRow.offsetTop,
                     ),
-                  );
+                  });
                 }
               }
             : null