UI | Create dashboard modal

[kacper-cyra]

• [ ] Should receive: on created handler, on modal closed
• [ ] Should allow for choosing cover from image picker
• [ ] Should allow for inserting title
• [ ] Should allow toggling between private and public mode
• [ ] Should trigger on created handler after user interaction with create button, and pass to it dashboard object with contains: title, cover image url, dashboard status (private or public)
• [ ] Should trigger on modal closed after user chooses to cancel or close modal