Make transaction request parameters less rigid

[walmat]

Fixes APP-2248

What changed (plus any additional context for devs)

1. Transaction Message Card Component Update

Type Definition Changes

• Removed dependency on RPCMethod from walletConnect types
• Changed method prop type from RPCMethod to string for better flexibility

2. New Build Transaction Helper

New File Creation

• Added new file src/helpers/buildTransaction.ts
• Implements two main functions:
  • getGasLimitForSuggestedGas
  • buildTransaction

Gas Estimation Logic

• Moved gas estimation logic from SignTransactionSheet to dedicated helper
• Implements padding and validation for gas estimates
• Handles fallback scenarios for gas limit calculations

Transaction Building

• Centralizes transaction building logic in one location
• Handles gas parameters, nonce management, and transaction type conversion
• Provides a cleaner interface for creating transaction objects

3. Sign Transaction Sheet Refactor

Code Cleanup

• Removed duplicated gas estimation logic
• Simplified transaction payload handling
• Improved error handling and logging

Integration Changes

• Now uses the new buildTransaction helper
• Streamlined transaction submission flow
• Better separation of concerns between transaction building and signing

This PR represents a significant improvement in the transaction handling architecture, moving complex transaction building logic into a dedicated helper while simplifying the transaction message card component. The changes promote better code organization and maintainability.

Screen recordings / screenshots

Simulator.Screen.Recording.-.iPhone.16.Pro.-.2025-01-09.at.11.52.55.mp4

What to test

sends, sign, txns from MWP, Dapp Browser, WC

[linear]

APP-2248 Refactor TX parsing from dapps so it doesn't break

[brunobar79]

Launch in simulator or device for 11f6f17

[derHowie]

legibility 📈