Added a new `BkndAdminConfig` type to streamline Admin UI configuration options, consolidating properties for base path, logo return path, theme, entities, and app shell settings. Updated `BkndAdminProps` to utilize this new configuration type. Additionally, introduced a new documentation section for extending the Admin UI, detailing customization options and providing examples for advanced usage.
Enhanced `FieldLabel` to support tooltips and additional props. Refactored form field components for better customizability and ensured compatibility with new `CustomField`. Updated `onChange` handlers to include context for improved flexibility. Added exports for UI components.
