adding more css and twig info for teaser presentation

css/styles.css

source/_patterns/00-config/01-mixins/_mixins.link.scss

source/_patterns/02-base/date-formats/_date-formats.scss

source/_patterns/02-base/date-formats/date-formats.yml

source/_patterns/02-base/date-formats/long-date.twig

source/_patterns/02-base/date-formats/long-datetime.twig

source/_patterns/02-base/date-formats/medium-date.twig

source/_patterns/02-base/date-formats/medium-datetime.twig

source/_patterns/02-base/date-formats/short-date.twig

source/_patterns/02-base/date-formats/short-datetime.twig

source/_patterns/04-components/card/_card.scss

source/_patterns/04-components/card/card.twig

source/_patterns/04-components/teaser/_teaser.scss

...erns/04-components/teaser/teaser--blog/_teaser--blog.scss

...terns/04-components/teaser/teaser--blog/teaser--blog.twig

...tterns/04-components/teaser/teaser--blog/teaser--blog.yml

source/_patterns/04-components/teaser/teaser.twig

source/_patterns/04-components/teaser/teaser.yml