Add Presenter Mode and Reusable Hooks to shadcn Repository

[BurnedChris]

Description:
We should develop a robust presenter mode for our deck system and extract reusable presentation hooks that could be contributed to the shadcn component repository for wider use.

Requirements:

• Create a presenter mode with:

  • Slide preview (current and next slide)
  • Presenter notes display
  • Timer/clock functionality
  • Audience view toggle
  • Visual progress indicator

• Develop reusable React hooks:

  • usePresentation - Core presentation state management
  • useSlideNavigation - Navigation between slides
  • usePresenterNotes - Handle presenter notes
  • useSlideTimer - Track presentation timing
  • useKeyboardControls - Handle keyboard navigation

Implementation Notes:

• Presenter mode should be togglable with keyboard shortcut
• Consider using WebSockets or similar for dual-screen synchronization
• Hooks should be abstracted enough to work with any React-based presentation system
• Prepare documentation for potential shadcn contribution
• Follow shadcn's component structure and style guidelines

Acceptance Criteria:

• Fully functional presenter mode working on separate screen/window
• Clean API for all hooks with TypeScript definitions
• Unit tests for all hooks
• Example implementation showing usage in our codebase
• Contribution-ready code with proper documentation following shadcn standards