Multi json input

[Assem-Uber]

Summary
Create an input that allows adding multiple JSON, required for adding workflow input arguments.

Requirements

• Allow adding more than one input
• Disables the add button when not all fields are filled
• Delete button removes the input, except if there is one input it clears it.
• Delete button is disabled when the only existing input is empty

Screenshots

[Copilot]

Pull Request Overview

This PR introduces a new MultiJsonInput component that allows users to add and manage multiple JSON inputs dynamically, designed for workflow input arguments. The component provides add/remove functionality with intelligent button states based on input content.

Key changes:

• Creates a reusable multi-input component with dynamic add/remove capabilities
• Implements smart button state management (add disabled when fields empty, delete disabled for single empty input)
• Provides comprehensive error handling for both global and per-input validation

Reviewed Changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated 2 comments.

File	Description
src/components/multi-json-input/multi-json-input.types.tsx	Defines TypeScript interface for component props including value array and error handling
src/components/multi-json-input/multi-json-input.tsx	Main component implementation with input management logic and UI rendering
src/components/multi-json-input/multi-json-input.styles.ts	Styletron-based CSS styling for component layout and visual design
src/components/multi-json-input/tests/multi-json-input.test.tsx	Comprehensive test suite covering component behavior and user interactions

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