Release Notes - 1/17/24 Tag v5.1.4

Below are the release notes for the BT Tag version 5.1.4, which was deployed on 1/18/24.

• Sub-ms support for onload
• INP Attribution injected into a standardized custom variable
• Fixing Datacenter (DCTR) incorrectly saving "Default" into local storage
• Added try/catch around currency conversion function