ENYO-642: TranslateScrollStrategy: Scroll thumb is not updated

Issue.

When using strategies other than `Native`, the thumb position was not updated correctly, when scrolling items into view.

Solution.

Move the call to Sync the thumb, after it had been determined if the thumb should be visible or hidden.

Also cleaned up blank spaces at the end of the file.

Enyo-DCO-1.1-Signed-off-by: Derek Anderson <derek.anderson@lge.com>