Improve performance of MCP execution block

[daniel-lxs]

This PR makes some improvements to the McpExecution.tsx component to increase performance and reduce lag.

• Not rendering the response if the block is not expanded.
• The input arguments are parsed only after the model has completely written it.

---

Important

Optimize McpExecution.tsx by deferring JSON parsing and rendering only when necessary to improve performance.

• Behavior:
  • McpExecution.tsx now only renders responses when the block is expanded, preventing unnecessary rendering.
  • JSON parsing for responseText and argumentsText is deferred until data is complete, avoiding partial JSON parsing.
• Functions:
  • tryParseJson is now a useCallback to memoize the function and prevent unnecessary re-creations.
  • responseData and argumentsData use useMemo to optimize parsing logic based on component state.
• Components:
  • ResponseContainerInternal checks isExpanded before rendering content to avoid performance issues with large responses.

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