[chore] Feat/migration angular 15

CHANGELOG.md

angular.json

package.json

...omponents/src/lib/components/card/base-panel.component.ts

...fr-components/src/lib/components/card/card.component.html

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

.../src/lib/components/card/demo/demo-card-grid.component.ts

...ponents/src/lib/components/content/content.component.html

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

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

...nents/src/lib/components/download/download.component.html

...ponents/src/lib/components/download/download.component.ts

...omponents/src/lib/components/header/header.component.html

...-components/src/lib/components/header/header.component.ts

...fr-components/src/lib/components/link/link.component.html

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

...s/src/lib/components/search-bar/search-bar.component.html

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

...x-dsfr-components/src/lib/components/tag/tag.component.ts

...fr-components/src/lib/components/tile/tile.component.html