🏎️ refactor: Replace Sandpack Code Editor with Monaco for Artifact Editing (#12109)

* refactor: Code Editor and Auto Scroll Functionality

- Added a useEffect hook in CodeEditor to sync streaming content with Sandpack without remounting the provider, improving performance and user experience.
- Updated useAutoScroll to accept an optional editorRef, allowing for dynamic scroll container selection based on the editor's state.
- Refactored ArtifactTabs to utilize the new editorRef in the useAutoScroll hook, ensuring consistent scrolling behavior during content updates.
- Introduced stableFiles and mergedFiles logic in CodeEditor to optimize file handling and prevent unnecessary updates during streaming content changes.

* refactor: Update CodeEditor to Sync Streaming Content Based on Read-Only State

- Modified the useEffect hook in CodeEditor to conditionally sync streaming content with Sandpack only when in read-only mode, preventing unnecessary updates during user edits.
- Enhanced the dependency array of the useEffect hook to include the readOnly state, ensuring accurate synchronization behavior.

* refactor: Monaco Editor for Artifact Code Editing

* refactor: Clean up ArtifactCodeEditor and ArtifactTabs components

- Removed unused scrollbar styles from mobile.css to streamline the code.
- Refactored ArtifactCodeEditor to improve content synchronization and read-only state handling.
- Enhanced ArtifactTabs by removing unnecessary context usage and optimizing component structure for better readability.

* feat: Add support for new artifact type 'application/vnd.ant.react'

- Introduced handling for 'application/vnd.ant.react' in artifactFilename, artifactTemplate, and dependenciesMap.
- Updated relevant mappings to ensure proper integration of the new artifact type within the application.

* refactor:ArtifactCodeEditor with Monaco Editor Configuration

- Added support for disabling validation in the Monaco Editor to improve the artifact viewer/editor experience.
- Introduced a new type definition for Monaco to enhance type safety.
- Updated the handling of the 'application/vnd.ant.react' artifact type to ensure proper integration with the editor.

* refactor: Clean up ArtifactCodeEditor and mobile.css

- Removed unnecessary whitespace in mobile.css for cleaner code.
- Refactored ArtifactCodeEditor to streamline language mapping and type handling, enhancing readability and maintainability.
- Consolidated language and type mappings into dedicated constants for improved clarity and efficiency.

* feat: Integrate Monaco Editor for Enhanced Code Editing Experience

- Added the Monaco Editor as a dependency to improve the code editing capabilities within the ArtifactCodeEditor component.
- Refactored the handling of TypeScript and JavaScript defaults in the Monaco Editor configuration for better type safety and clarity.
- Streamlined the setup for disabling validation, enhancing the artifact viewer/editor experience.

* fix: Update ArtifactCodeEditor to handle null content checks

- Modified conditional checks in ArtifactCodeEditor to use `art.content != null` instead of `art.content` for improved null safety.
- Ensured consistent handling of artifact content across various useEffect hooks to prevent potential errors when content is null.

* fix: Refine content comparison logic in ArtifactCodeEditor

- Updated the condition for checking if the code is not original by removing the redundant null check for `art.content`, ensuring more concise and clear logic.
- This change enhances the readability of the code and maintains the integrity of content comparison within the editor.

* fix: Simplify code comparison logic in ArtifactCodeEditor

- Removed redundant null check for the `code` variable, ensuring a more straightforward comparison with the current update reference.
- This change improves code clarity and maintains the integrity of the content comparison logic within the editor.

client/package.json

@@ -38,6 +38,7 @@
     "@librechat/client": "*",
     "@marsidev/react-turnstile": "^1.1.0",
     "@mcp-ui/client": "^5.7.0",
+    "@monaco-editor/react": "^4.7.0",
     "@radix-ui/react-accordion": "^1.1.2",
     "@radix-ui/react-alert-dialog": "1.0.2",
     "@radix-ui/react-checkbox": "^1.0.3",
@@ -146,6 +147,7 @@
     "jest": "^30.2.0",
     "jest-canvas-mock": "^2.5.2",
     "jest-environment-jsdom": "^30.2.0",
+    "monaco-editor": "^0.55.0",
     "jest-file-loader": "^1.0.3",
     "jest-junit": "^16.0.0",
     "postcss": "^8.4.31",