refactor: perform eth_sendTransaction via EVM module

[meeh0w]

• CP-9159
• + migrate eth_sendTransaction to be performed via EVM Module

---

• Related PR: https://github.com/ava-labs/vm-modules/pull/160

TODOs

• Make sure custom chainId behavior is the same
  • no cross-environment transaction execution allowed (no mainnet execution while UI is on testnet or vice-versa)
  • transactions on custom networks are only allowed if the custom network is also active in the UI

Changes

• Starts using the updateTx callback provided by VM Modules for updating transaction fee configs / spend limits (see related PR above)
• Removes eth_sendTransaction handler and some of the related files so that those requests are performed using the EvmModule
  • Also removes the SignTransaction.tsx file / route & related files
• Updates useFeeCustomizer hook to also handle EVM fees
• Updates approval screen components to the new displayData schema so they can be used on GenericApprovalScreen

Testing

Basically a full regression on EVM features is needed:

• Send
• Bridge
• Swap
  • all of the above features but initiated by Core Web
• Send NFT
• dApp integrations (i.e. liquidity pool on TraderJoe.xyz)
  • make sure token spend approvals work as they used to

Screenshots:

TBA

Checklist for the author

• I've covered new/modified business logic with Jest test cases.
• I've tested the changes myself before sending it to code review and QA.