Conversations: fix list conversations

[lusmoura]

Listing conversations did not return the most recent ones, giving the impression that conversations were not persisted.

AI Description

The get_conversations function in conversation.py has been updated to sort conversations by their creation date in descending order. This ensures that the most recently created conversations are retrieved first.

Code Changes:

• The .order_by(Conversation.created_at.desc()) line has been added to the get_conversations function, specifying the sorting order.

[EugeneLightsOn]

Looks good to me

[tianjing-li]

@lusmoura I think since Faker generates a random created_at your unit test is now undeterministic - you could look into adding a manual created_at, and maybe just increment the seconds by i

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

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Additional details and impacted files

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