Update Wizard UI

[doppleware]

Add installation type choice on start
Remove 'skip' options from wizard UI
Add thumbnail for the video start guide
Update styles and wording

Mockups: https://www.figma.com/file/knBV9hsfk9Au7mDQdFAFea/READY-TO-DEV?node-id=1264-189839&t=Ko1puV1wqOXVh7qr-0