Update Dialogs according to specs

[Yolqin]

Documentation for dialogs was added.

1. Number of actions: max two
2. Desktop version: min-width: 360px, max-width: 600px
3. Added dialog for large content: Scrolling long content
4. Acknowledgment version
5. With and without body text
6. Responsive Full-screen version for Mobile

Desktop: https://www.figma.com/file/GA87sgdjJ8lrAHAi7qFQ3X/Desktop-Library?node-id=1527%3A7345
Mobile: https://www.figma.com/file/3RRfrTgJ37G7O7G5KFU86F/Mobile-Web-Library?node-id=673%3A1714