By Jaspreet Singh Feb 4 (Reuters) - Snap beat Wall Street estimates for fourth-quarter revenue, as more advertisers turned to the social media platform during the holiday season, ​sending its shares up over 2% in extended trading. The Snapchat-parent said total active advertisers ‌on the platform rose 28% in the fourth quarter, underscoring strength in direct response ads and growth in new ‌ad formats such as Sponsored Snaps and Promoted Places. The results calm investor jitters as advertisers increas ...