Update Google Analytics Tracker for GA4

[tommyneu]

Our current Google Analytics implementation is not using gtag.js. We also need to update code to allow for our events to be sent to our tracker and if other trackers are added theirs needs to be send to them

My initial reaction to the code would be changing analytics.bable.js to use code more similar to gtag('event', '{{ Event Name }}', { 'send_to': '{{ Tracker ID}}' });

We would also need to update ga.js to load gtag.js which is the current google analytics version

Reference links:

• stackoverflow multiple trackers
• GA doc routing and grouping
• GA docs gtag.js