🔐 Update SEND flow RPC call to accept nonce, gas limit, gas amount and tip parameters

[shivekkhurana]

Feature Issue

User Story

As a user,
I want to edit the send txn parameters,
So I can control the speed and order of txns

Description

Currently, the SEND flow UI computes the gas limit, gas amount, tip and nonce parameters automatically. The UI cannot change it.

We want to update the RPC call on the frontend, so it accepts these 4 parameters.

Acceptance Criteria

The final send event handler should accept:

• Gas amount parameter
• Gas tip parameter
• Gas limit parameter and
• Nonce parameter

Notes

This ticket is only to update the RPC call, and make go changes if needed (none afaik). The actual UI for the feature will be creaed in #21016.

[friofry]

added status-go task: status-im/status-go#6109