WalletLink: add getter/setter for default wallet (#4505)

### Description

<!-- Provide a clear and concise description of your changes and their
purpose -->

### Changes

<!-- List the specific changes made in this PR, for example:
- Added/modified feature X
- Fixed bug in component Y
- Refactored module Z
- Updated documentation
-->

### Checklist

- [ ] Tests added where required
- [ ] Documentation updated where applicable
- [ ] Changes adhere to the repository's contribution guidelines

Author: salzbrenner

packages/web3/src/wallet-link/WalletLink.ts

@@ -5,6 +5,7 @@ import { WalletAlreadyLinkedError, WalletNotLinkedError } from '../types/error-t
 import { BaseChainConfig } from '../utils/web3Env'
 import { IWalletLinkShim } from './WalletLinkShim'
 import { createEip712LinkedWalletdData } from '../eip-712/EIP-712'
+import { OverrideExecution } from '../BaseContractShim'
 
 export const INVALID_ADDRESS = '0x0000000000000000000000000000000000000000'
 
@@ -48,6 +49,24 @@ export class WalletLink {
         return { walletAddress }
     }
 
+    public async getDefaultWallet(rootKeyAddress: string) {
+        return this.walletLinkShim.read.getDefaultWallet(rootKeyAddress)
+    }
+
+    public async setDefaultWallet<T = ContractTransaction>(args: {
+        signer: ethers.Signer
+        walletAddress: Address
+        overrideExecution?: OverrideExecution<T>
+    }) {
+        const { signer, walletAddress, overrideExecution } = args
+        return this.walletLinkShim.executeCall({
+            signer,
+            functionName: 'setDefaultWallet',
+            args: [walletAddress],
+            overrideExecution,
+        })
+    }
+
     private generateRootKeySignatureForWallet({
         rootKey,
         walletAddress,