Add txId to TransactionDetails type

[iamacook]

What it solves

Transaction deeplinking preparation

How this PR fixes it

The transaction txId has been added to the endpoint in order for us to load a specific transaction from the Redux store.

[github-actions]

ESLint Summary View Full Report

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Type	Occurrences	Fixable
Errors	0	0
Warnings	0	0
Ignored	0	N/A

• Result: ✅ success
• Annotations: 0 total

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^{Report generated by eslint-plus-action}