Added documentation blocks to help users build out documentation sites better and faster.

As our library of blocks continues to grow into the hundreds, browsing and discovering new designs was starting to feel overwhelming. To make exploration faster and more enjoyable, we've redesigned our block listings into a gallery-style layout. This new design lets you scan more blocks at a glance, and quickly find exactly what you need without endless scrolling.

• Improved block discovery
• Improved website performance
• Set the foundation for documentation blocks

Added responsiveness preview feature to the block studio for better design adjustments.

Implemented search functionality in the block studio to quickly find and insert blocks.