Issue #3421626 by phenaproxima, Wim Leers, borisson_: Mark config schema types (field.field_settings.* and field.storage_settings.*)) for field types that have no settings as fully validatable

Issue #3341682 by Wim Leers, phenaproxima, borisson_, catch, alexpott: New config schema data type: required_label

Issue #2639382 by mohit_aghera, yogeshmpawar, stomusic, mpdonadio, Abdelrahman Amer, scott_euser, idebr, dagmar, dineshw, Lendude, mpp, alexpott, larowlan, manuel.adan, charginghawk, cestmoi, Berdir, redseujac: "Authored on" string on multilanguage sites not translating; always renders English "ago" for "time ago" format

Issue #2895544 by Ginovski, Lendude, mpdonadio, jhedstrom, Berdir, dawehner: Datetime module missing view plugin config schema

Issue #2843934 by mpdonadio, Gábor Hojtsy: datetime.schema.yml does not use the "built-in" date_format type

Issue #2399211 by mpdonadio, legolasbo, vijaycs85, pjonckiere, rteijeiro, jhodgdon, dawehner, yched: Support all options from views fields in DateTime formatters

Issue #2370305 by Gábor Hojtsy, yched: Refactor field type configuration schemas for DX, easier to find errors

Issue #2378055 by Gábor Hojtsy: Reorganise config schema for entity_form_display / entity_view_display

Issue #2368349 by Gábor Hojtsy, alexpott: Entity view and form display configuration schemas are too verbose / key ones missing

Issue #2312093 by alexpott, yched, andypost, swentel | xjm: Rename FieldInstanceConfig to FieldConfig.

Issue #2165835 by yched, tstoeckler: Rename EntityDisplay to EntityViewDisplay in accordance with its interface.

Issue #2167623 by danilenko_dn, sidharthap, Nitesh Sethia, krishnan.n, aitiba, alexpott, ashwinikumar, Barrett, damiankloip, deepakaryan1988, foxtrotcharlie, ianthomas_uk, neetu morwani, nonsie, piyuesh23, Sharique, sivaji, sushantpaste, swentel, vijaycs85, YesCT: Add test for all default configuration to ensure schema exists and is correct.

Issue #1989468 by plopesc, yched, Wim Leers, effulgentsia: Weird messing with 'default_value_function' in date widgets.

Issue #1973534 by vijaycs85, piyuesh23: Provide config schema to field types and storage in datetime module.