feat(table): permettre de conserver l'ordre initial des colonnes

CHANGELOG.md

...r-components/src/lib/components/table/data-table.model.ts

...cts/ngx-dsfr-components/src/lib/components/table/index.ts

...-components/src/lib/components/table/table.component.html

...fr-components/src/lib/components/table/table.component.ts

...ts/ngx-dsfr-components/src/lib/components/table/table.mdx

...dsfr-components/src/lib/components/table/table.stories.ts