fix: Restrict the several countries execution to night cycles.

[dktsni]

Type of modification

• Breaking change
• New Feature
• Bug Fix
• Chore (refactor, documentation, tests... all the changes with no impact on ARA functionalities.)

Changes description

Fix #5
Update the Functionalities -> Cartography screen to refresh the non mandatory text fields when they're updated and removed.

Technical description

Fill the comment and created attributes in the FunctionalityDTO with empty strings when their values are null after the DB update to force them to appear in the response's body.

• Some minor clean up (useless (un)boxing + check nullity in responses' body in the FunctionalityResourceIT test class).

PR CheckList

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• Your PR's title has the prefix : feat:, fix: or chore:
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