feat: Cohesion identify event firing, modify ConversionTracked

[julianajlk]

• Adding the identify call to provide the identify stitching between Cohesion and Segment.
• Adding a type check to make sure the data sent is always a string since this is what Cohesion expects. Red Ventures data team needs the course key as a workaround to map out the course variant that is not possible to do with the data we have in the basket related to "type".
• Modify the getCorrelationId helper, adding the domain.