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## Summary by CodeRabbit
* **New Features**
* Introduced a redesigned chat interface with new cell types for user,
assistant, system, loading, and error messages.
* Added streaming chat responses and improved session management.
* Enhanced input box behavior, allowing sending messages with the return
key and inserting new lines via the edit menu.
* Added new GraphQL queries for fetching recent and latest chat
sessions.
* **Refactor**
* Replaced previous chat message and session management with a new, more
structured view model system.
* Updated chat view to use a custom table view component for better
message rendering and empty state handling.
* Simplified and improved error and loading state handling in the chat
UI.
* **Bug Fixes**
* Improved error reporting and retry options for failed chat messages.
* Fixed inconsistent property types for message and error identifiers.
* **Style**
* Updated UI components for chat cells with modern layouts and
consistent styling.
* **Chores**
* Added a new package dependency for event streaming support.
* Renamed various internal properties and classes for clarity and
consistency.
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