DOCSP-38601: Update Conflict Resolution with info on dictionary keys

[cbullinger]

Pull Request Info

Jira ticket: https://jira.mongodb.org/browse/DOCSP-38601

• Conflict Resolution: Add new "Dictionaries" section to clarify how Sync handles conflicts with dictionary key updates

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Release Notes

• Device Sync
  • Technical Details/Conflict Resolution: Add new "Dictionaries" section to clarify how Device Sync handles conflicts with dictionary keys.

Review Guidelines

REVIEWING.md

[dacharyc]

I think this is broadly fine as-is, but have a couple of non-blocking suggestions that you might consider.

[dacharyc]

I might instead position this benefit-first, as conflict resolution is one of the reasons to use Realm/Device Sync. Maybe something like:

Suggested change

	:description: A high-level overview of how Atlas Device Sync resolves synced data conflicts.
	:description: Learn about how Atlas Device Sync automatically resolves synced data conflicts, or how to build custom conflict resolution rules.

[dacharyc]

We're referring to how conflicts are handled in lists, but we don't have a "Lists" section that spells this out. Instead, the information is scattered throughout the page. I might skip the intro sentence here and go straight to:

Device Sync considers the removal of a dictionary key to be an update, rather than a deletion. As a result...

Alternately, we could add a List section that spells out list details.