[DRAFT] [REFACTOR] Iterate settings management from the SDK

[frascuchon]

Description

This PR reviews and fixes some errors when working with settings for draft datasets.

import argilla as rg

local = rg.Argilla(api_key="argilla.apikey")

if dataset := local.datasets("draft_dataset"):
    dataset.delete()
    
dataset = rg.Dataset(name="draft_dataset")

# This is a workaround and could be changed
dataset.create(publish=False)

dataset.settings.fields.add(rg.TextField(name="text"))
dataset.update()

dataset.records.log([{"text": "Hello, World!"}])

dataset.settings.fields.add(rg.TextField(name="label"))
dataset.update()

# This doesn't work yet 
dataset.settings.fields["label"].required = False
dataset.update()

dataset.records.log([{"text": "Hello, World!", "label": "greeting"}])

dataset.settings.fields.remove("text")

dataset.settings.questions.add(rg.TextQuestion(name="comment"))
dataset.update()

dataset.records.log([{"comment": "This is a comment", "label": "greeting"}])

Type of change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Refactor (change restructuring the codebase without changing functionality)
• Improvement (change adding some improvement to an existing functionality)

How Has This Been Tested

Checklist

• I added relevant documentation
• I followed the style guidelines of this project
• I did a self-review of my code
• I made corresponding changes to the documentation
• I confirm My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• I have added relevant notes to the CHANGELOG.md file (See https://keepachangelog.com/)