The Mail app’s message suggestion logic has been reorganized into dedicated reusable parts. This simplifies future maintenance and makes it easier to bring the same suggestion experience to other messaging areas without duplicating work.

This will reduce composer model complexity and allow to reuse suggestion code
inside other component.

task-2447140

This change makes it easier to add custom fields to the signup form without replacing the whole signup process. It helps businesses adapt customer registration to their needs with less development effort and lower maintenance risk.

Description of the issue/feature this PR addresses:
In case you want add some custom field during sign up, you should override all method.

@odony



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