…lignment commands and update cache structure for better layer visibility

… with Shift key for layer alignment and update dependencies in FlowNode callbacks for improved state management

- Board Versioning
- Releases (+ Canary Releases)

… versioning; update FlowBoard and FlowRuns components to handle version state and prevent modifications on older versions. Add BoardMeta component for managing board metadata.

…ate components for improved organization and clarity; remove unused imports to streamline code.

…ty and structure

- Reorganized imports in backend-provider.tsx for better clarity.
- Reformatted methods in EmptyBackend class for consistent indentation and spacing.
- Updated EmptyBackendProvider to use modern React patterns and improved loading state handling.
- Simplified the Board component structure and improved readability by adjusting formatting.
- Fixed import order and formatting in index.astro for consistency.
- Enhanced BoardMeta component with clearer state management and improved formatting.
- Refined FlowBoard component for better readability and consistency in method calls.
- Improved FlowRuns component formatting and ensured consistent use of semicolons.
- Standardized import statements in backend-state.ts for consistency.

…ersion display in BoardMeta

- Wrapped the PersistQueryClientProvider with ThemeProvider in backend-provider.tsx to manage theme settings.
- Added local version state management in board-meta.tsx to display the current version of the board in the UI.
- Updated the version selection dropdown to show the latest version in a more user-friendly format.

… backend-provider component by removing unnecessary line; change icons in set_stop and set_system nodes; improve formatting in board-meta component; enhance MarkdownComponent rendering; fix CSS formatting for .md-wrapper class.

…ut with meta tags and favicon; include new icons and images

… in Header component

…extCache

…d recording GIF; remove outdated preview images