fix(a11y): Corrige les problèmes d'accessibilité detecté par le plugin de storybook

.storybook/preview-head.html

CHANGELOG.md

package.json

...fr-components/src/lib/components/button/button.stories.ts

...src/lib/components/buttons-group/buttons-group.stories.ts

...mponents/src/lib/components/card/card-download.stories.ts

...dsfr-components/src/lib/components/card/card.component.ts

...x-dsfr-components/src/lib/components/card/card.stories.ts

...omponents/src/lib/components/content/content.component.ts

...-components/src/lib/components/content/content.stories.ts

...lib/components/header/demo/demo-header-focus.component.ts

...fr-components/src/lib/components/header/header.stories.ts

...x-dsfr-components/src/lib/components/link/link.stories.ts

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

...dsfr-components/src/lib/components/tag/tag.component.html

...x-dsfr-components/src/lib/components/tile/tile.stories.ts

...components/src/lib/forms/form-email/form-email.stories.ts

.../lib/forms/form-input/demo/demo-input-date.component.html

...components/src/lib/forms/form-input/form-input.stories.ts

...mponents/src/lib/forms/form-select/form-select.stories.ts