Fix README image syntax and remove extension se...

...ttings panel code from index.ts

Add sticky note command and UI (#1) * Add stic...

...ky note command and UI

• Fix sticky note parsing, editable titles, and observer cleanup

• Use top-level sticky note block as title with child content

• Refine sticky note rendering and interaction UX

• Enhance sticky note functionality with new focus methods and debug utilities

• Update package.json to rename project to "sticky-notes" and enhance description and keywords for better clarity

• Add error handling for block updates and deletions in sticky notes

• Refactor layout update function and implement layout persistence for sticky notes

• Update README.md to introduce Sticky Notes feature, detailing usage, functionality, and design principles

• Adjust z-index values for sticky notes to improve layering and interaction. Set container z-index to a higher value for better visibility.

• Remove unused layouts from sticky notes based on existing UIDs to optimize performance and maintain clean state.

• Implement error handling in sticky note creation process to ensure proper rollback on failure and improve stability.

• Add video demonstration to README.md for Sticky Notes feature