SCKAN-323 fix: Update frontend to send new owner_id on retry

[afonsobspinto]

closes https://metacell.atlassian.net/browse/SCKAN-323

Error explained:

• The frontend was making an update request that included a change of owner.
• The backend applied the change and then ran into a permission error on a post processing step

Solution:

• This PR changes the frontend request to include the correct/desired owner for the statement
• It also refactors the backend to move the update logic from the view to the serializer.
• Makes the owner and owner_id read_only on the update and provides a more descriptive error message when those are included in the incoming request

2024-11-14.12-51-45.mp4

[ddelpiano]

lgtm