[AS-4428] Adding event to track list privacy

[daytavares]

The type of this PR is: TYPE

This PR resolves [AS-4428]

Description

PR Checklist (tick all before merging)

• If I've added a new file to the tree I've exported it from the common index.ts
• I've added comments with examples for any new interfaces and ensured that they're in the docs
• No platform-specific terminology has been used outside of click and tap (platform is inferred by the DB storing events)

[starsirius]

@daytavares The current design requires clicking the "Save Changes" button to save the list privacy update. It means:

• When collector toggles the list privacy for individual list, nothing is really saved, until clicking the "Save Changes" button. And it's possible that collector can toggle the privacy, dismiss the modal, and does not save the changes.
• When clicking "Save Changes", we'll update the list privacy for all lists in a batch.

So I want to double check that

• The event would only be sent when collector clicks "Save Changes", and would not be sent when collector toggles the privacy for individual list.
• We'll fire x number of events when collector saves the changes, with x being the total number of lists.
  • I wonder if it's better to just fire 1 event, with all the list privacy value in an array or something.

Let me know if I can pair and clarify things together!

[daytavares]

@starsirius can we merge this?