feat(ui): supprime l'ancien 'layout' et utilise celui du dsfr (#1143)

Makefile

knip.ts

package.json

packages/api/src/@types/graphql-fields.d.ts

packages/ui/.storybook/preview.ts

packages/ui/package.json

packages/ui/scripts/generateIconTypes.ts

packages/ui/src/app.tsx

...i/src/components/_common/demande-titre-button.stories.tsx

...re-button.stories_snapshots_DefaultCannotCreateTitre.html

...emande-titre-button.stories_snapshots_UserEntreprise.html

...ges/ui/src/components/_common/demarche-statut.stories.tsx

...onents/_common/demarche-statut.stories_snapshots_All.html

...on/document-type-typeahead.stories_snapshots_Default.html

...ad.stories_snapshots_WithDocumentTypeAlreadySelected.html

packages/ui/src/components/_common/domaine.stories.tsx

...onents/_common/domaine.stories_snapshots_AllDomaines.html

...components/_common/domaine.stories_snapshots_Default.html

packages/ui/src/components/_common/downloads.stories.tsx

...mponents/_common/downloads.stories_snapshots_Default.html