OZG-6305 OZG-6463 apply styling

...on-request-form/collaboration-request-form.component.html

...-container/organisations-einheit-container.component.html

...it-container/organisations-einheit-container.component.ts

...rganisations-einheit/organisations-einheit.component.html

...client/libs/collaboration/src/lib/collaboration.module.ts

...nheit-form/search-organisations-einheit-form.component.ts

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

.../design-system/src/lib/tailwind-preset/tailwind.config.js