bug: Incorrect dirty draft count in footer on nested objects

[lornakelly]

Describe the Bug

Dependencies:
#398
#397
#396

The dirty draft count displayed in the edit form footer is not accurately tracking changes to deeply nested objects and some combobox changes. We should wait for above tickets to be completed.

TBD: Determine behaviour we want as we need to take into account default values which could be tracked as a change before required fields are filled in etc

Steps to reproduce

1. open storybook
2. navigate to nested editing > raise error shapes
3. Change error type dropdown
4. Notice footer has 0 changed
5. Keep editing fields inside that object, it counts all edits as 1

Expected Behavior

The count should be correct

Editor Version

No response

Platform

Web / Browser

Additional Context

No response