Add parameterKeys to textPrompt

[wintonzheng]

[!IMPORTANT] Add parameterKeys support to textPrompt nodes and refactor TaskNodeParametersPanel to ParametersMultiSelect.

• Behavior:
  • Add parameterKeys to textPrompt nodes in FlowRenderer.tsx, TextPromptNode.tsx, and types.ts.
  • Update WorkflowParametersPanel.tsx to handle parameterKeys for textPrompt nodes when parameters are deleted.
  • Modify getWorkflowBlock() and convertToNode() in workflowEditorUtils.ts to include parameterKeys for textPrompt nodes.
• Refactor:
  • Rename TaskNodeParametersPanel to ParametersMultiSelect and update imports in TaskNode.tsx and TextPromptNode.tsx.

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