Merge pull request 'OZG-7047-tooltip' (#838) from OZG-7047-tooltip into master

alfa-client/apps/demo/src/app/app.component.html

alfa-client/apps/demo/src/app/app.component.ts

alfa-client/libs/design-system/src/index.ts

...s/design-system/src/lib/tooltip/tooltip.component.spec.ts

...t/libs/design-system/src/lib/tooltip/tooltip.component.ts

...s/design-system/src/lib/tooltip/tooltip.directive.spec.ts

...t/libs/design-system/src/lib/tooltip/tooltip.directive.ts

...ent/libs/design-system/src/lib/tooltip/tooltip.stories.ts

alfa-client/tsconfig.base.json