[zksend SDK] fix getSentTransactions not respecting the passed in Sui…

…Client URL (#20334)

## Description 

Context:
https://mysten-labs.slack.com/archives/C0701K5UHCP/p1732048923401389

We aren't passing through the Sui client instance to `loadAssets`, so
it's defaulting to the public fullnode URL in Stashed which has heavier
rate limits as opposed to our internal RPC.

<img width="1696" alt="image"
src="https://github.com/user-attachments/assets/7d70fd2f-4532-406f-a591-1790f83ee108">


## Test plan 

How did you test the new or updated feature?

---

## Release notes

Check each box that your changes affect. If none of the boxes relate to
your changes, release notes aren't required.

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that describes the impact of your changes that a user might notice and
any actions they must take to implement updates.

- [ ] Protocol: 
- [ ] Nodes (Validators and Full nodes): 
- [ ] Indexer: 
- [ ] JSON-RPC: 
- [ ] GraphQL: 
- [ ] CLI: 
- [ ] Rust SDK:
- [ ] REST API:

.changeset/shiny-cups-sniff.md

@@ -0,0 +1,5 @@
+---
+'@mysten/zksend': patch
+---
+
+Fix getSentTransactionsWithLinks defaulting to the public fullnode URL

sdk/zksend/src/links/get-sent-transactions.ts

@@ -87,6 +87,7 @@ export async function getSentTransactionsWithLinks({
 							address,
 							contract,
 							isContractLink: true,
+							client,
 							...linkOptions,
 						});