Feat/mcp UI apps - #72

- Update CLI to read version from package.json instead of hardcoding it.
- Replace fs.promises.access with fs.access for checking file existence.

- Update `@mcp-ui/server` patch hash in `pnpm-lock.yaml`.
- Add new dependencies for `@langchain` packages in `pnpm-lock.yaml`.
- Restore `express` version in `pnpm-lock.yaml`.
- Enhance CLI to dynamically read package version from `package.json`.
- Implement workspace dependency handling in `create-mcp-use-app`.
- Add a new standalone example for the MCP server.
- Refactor favicon proxy and middleware for improved functionality.
- Introduce shared utilities for favicon fetching and caching.
- Update inspector package to support new features and improve error handling.

…dencies

- Changed the directory name from `standalone` to `simple` in the workspace configuration.
- Updated dependencies in `pnpm-lock.yaml`, including removing `@types/bun` and adjusting TypeScript version.
- Modified CLI to use `stdio: 'inherit'` for better output handling.
- Enhanced resource definition in `mcp-server.ts` to include metadata fields.
- Updated resource definition interface in `types.ts` to improve documentation and structure.

- Updated resource definition in `server.ts` to include a title and improved description.
- Enhanced `listResources` method in `base.ts` to support optional pagination with a cursor.
- Introduced `listAllResources` method for automatic pagination of resource listings.
- Added `subscribeToResource` and `unsubscribeFromResource` methods for managing resource updates.
- Improved documentation for resource templates and annotations in `mcp-server.ts` and `types.ts`.

…erver resources

- Added new UI templates for data visualization and Kanban board in `create-mcp-use-app`.
- Updated `pnpm-lock.yaml` to include new dependencies for the UI templates.
- Refactored server resource definitions to improve structure and added annotations for better documentation.
- Modified `copy-templates` script in `package.json` to use a dedicated script for copying templates.
- Enhanced styling and layout for data visualization components to improve user experience.

… and improved user interactions

- Added a copy URL button in InspectorDashboard for easy access to connection URLs.
- Introduced preview and JSON toggle functionality in ResourcesTab for better resource visualization.
- Enhanced MCP UI resource handling in ResourcesTab to display content based on user selection.
- Updated McpUIRenderer to support new resource formats and improved UI action handling.
- Refactored input handling in ToolsTab to respect tool input schemas for better data management.

- Deleted the `data-visualization.tsx` and `todo-list.tsx` files as they are no longer needed in the project.
- Updated the `kanban-board.tsx` to ensure proper type handling for new tasks.
- Adjusted server resource definitions to streamline the UI component integration.

… UI improvements

- Added connection state monitoring in InspectorDashboard to handle pending connections and display success/error messages.
- Refactored connection handling logic to improve user experience during connection attempts.
- Replaced the empty state message with a NotFound component for better clarity.
- Updated button behavior to indicate connection status with a loading state.
- Cleaned up imports and adjusted layout styles for consistency.

- Changed import path for `createMCPServer` to `mcp-use/server` across multiple files for consistency.
- Updated `@modelcontextprotocol/sdk` version from 1.12.1 to 1.20.0 in `pnpm-lock.yaml` and related files.
- Adjusted TypeScript configuration to use `bundler` for module resolution in example projects.
- Added `test_app` to the workspace configuration.