fix(input) focus sur tags et non sur input

CHANGELOG.md

...fr-components/src/issues/issue-375/demo-tags.component.ts

...-components/src/issues/issue-375/demo-tags.stories.ts.old

...omponents/src/issues/issue-421/demo-search.component.html

...-components/src/issues/issue-421/demo-search.component.ts

...omponents/src/issues/issue-421/demo-search.stories.ts.old

...r-components/src/lib/components/tag/demo-tag.component.ts

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

.../lib/components/tags-group/demo-tags-group.stories.ts.old