New Backpack field checklist

todo.md

New field checklist:

• does the value get saved to the database?
• does the value need to be casted to something in the Model? is it mandatory? should it support both?
• can the dev increase/decrease the size using Bootstrap classes?
• does resizing also work with Fluent field syntax? eg. ->size(6)?
• does it support ->disabled() and ->readonly()
• does it support ->default()?
• has all jQuery been removed in favor of vanilla Javascript?
• have the CSS and JS dependencies been loaded with @loadOnce?
• have the CSS and JS dependencies been pushed to proper stacks (after_scripts and after_styles)
• on error, does the field properly show the error?
• does the field support prefix and suffix?
• does the field support hint?
• on validation error, does the field properly get the old value?
• can the dev customize the configuration/parameters from PHP?
• are you sure there are no visible strings that should be turned into translated strings?
• does this field work inside the repeatable field?
• does this field work with our CrudField JS Library? do all events there work on this field?
• if the input is first on page, does the focus correctly set on the input?
• if the input is first in a modal, does the focus correctly set on the input?
• does the field have documentation? should it say it needs assets to be published to work?
• does the field have a screenshot?