Attach a request id to response headers

[esaminu]

In order to be able to trace errors thrown on the frontend, it's useful to have a request id header in the response that will be rendered in error toasts that the user sees. We can then query the backend logs based on the ids and trace the error more effectively.

caused by near/fast-auth-signer#15

[volovyks]

Related comment: near/fast-auth-signer#15 (comment)

[itegulov]

Should we follow https://www.w3.org/TR/trace-context/? Would that be fine with you @esaminu?

[esaminu]

@itegulov This looks good to me. We will display the 'traceparent' header from the response in the toast and the whole request + error can be successfully traced from a screenshot or similar.