[Dropdown]: TEDI-Ready component development

[airikej]

Problem

Also add prop for dropdown open placement + different content to be added inside Dropdown.Content

Solution

Examples and information

[airikej]

@karolin-kivisikk https://storybook.tedi.ee/react/feat/94-dropdown-tedi-ready-component-development/?path=/docs/tedi-ready-components-overlay-dropdown--docs