v2.0b1 - Airflow update

Hi there 👋. New BubbleUI update coming here for christmas! 🎅

This is a beta version so I will recommend not to use it for production yet.

Whats new on v2.0:

• All the code is written from scratch.
• Added prototyping UI components like breadcrumbs, navbars.
• New adaptative Grid layout (based on flex).
• User theme preference taken into account.

Compiled with Littlestyles v1.0

🎄 Merry christmas! 🎄