GraphQL documentation - Add more explanations for transactionChain and transactionInputs requests

### Is your feature request related to a problem?

_No response_

### Describe the solution you'd like

transactionChain and transactionInputs have some properties not explained in the doc
Could you add more explanations to understand how it works

transactionChain: order and pagingAddress
transactionInputs: limit, pagingAddress

Thx

### Additional context

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### Epic

_No response_

Start with the existing GraphQL documentation entries for the transactionChain and transactionInputs requests. Review how order, limit, and pagingAddress are currently described; done means each listed property has a clear explanation of its behavior and use.

Written by the indexing model from the issue text.