SwitchNetwork now part of IThirdwebWallet

[0xFirekeeper]

SmartWallet.SwitchNetwork now also switches underlying wallet network. Also adds SmartWallet.ActiveChain property.

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PR-Codex overview

This PR primarily introduces the SwitchNetwork method to several classes, enabling the functionality to change the active network based on a specified chainId. It also includes adjustments to ensure that the active chain ID is consistently handled across different components.

Detailed summary

• Added SwitchNetwork(BigInteger chainId) method to PrivateKeyWallet and EcosystemWallet.
• Updated _rpcUrl in ThirdwebRPC to include ClientId.
• Introduced ActiveChainId property in SmartWallet and replaced instances of _chainId with ActiveChainId.
• Enhanced SwitchNetwork logic in SmartWallet to handle network switching and related contract updates.
• Implemented tests for SwitchNetwork functionality in Thirdweb.Wallets.Tests.
• Commented out existing tests for gasless transactions in ZkSmartWallet.Tests.

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[codecov-commenter]

Codecov Report

Attention: Patch coverage is 76.11940% with 16 lines in your changes missing coverage. Please review.

Project coverage is 78.07%. Comparing base (3025488) to head (3412a6c).

Files with missing lines	Patch %	Lines
...irdweb/Thirdweb.Wallets/SmartWallet/SmartWallet.cs	74.60%	7 Missing and 9 partials ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #111   +/-   ##
=======================================
  Coverage   78.07%   78.07%           
=======================================
  Files          28       28           
  Lines        4684     4698   +14     
  Branches      639      639           
=======================================
+ Hits         3657     3668   +11     
- Misses        853      856    +3     
  Partials      174      174           

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