feat: add execute hook for multicall

[starknetdev]

Based on the discussions that have happened in #102 I have created a useStarknetExecute hook enabling multicalls.

Calls need to be defined when creating the hook, and not on submit. Similar to how useSignTypedData is done.

const { data, loading, error, reset, execute } = useStarknetExecute({
  calls,
  metadata
})

Currently formatting the calldata in calls is up to the UI to implement. I have made an example in next react app that does this. This is an example of an approval and deposit made to a bank contract.

The calls are also not currently view exposed for a 'tx cart' yet, this would be up to the UI to handle separately. Although definitely would want to try implement in the future.

• pnpm changeset
• pnpm lint

[fracek]

I like this interface (and now i think invoke should also have the function args as arguments to the hook).

[fracek]

I assume this is because the amount is an uint256? Should work with toBN(amount) instead of amount, '0'.

[starknetdev]

With toBN(amount) it passes as is (the object) in the transaction. The transaction goes through but no tokens are approved or sent (in example).The transaction log (in Argent for example) looks like this:

Transaction data
[
  "688466037836324210640682130671894602364182264487879175191481661276184612058",
  {
    "negative": 0,
    "words": [
      1
    ],
    "length": 1,
    "red": null
  },
  {
    "negative": 0,
    "words": [
      1
    ],
    "length": 1,
    "red": null
  }
]

[fracek]

Added a minor comment about the example.

Should also add a documentation page.

[starknetdev]

Fixed minor react-next export issue and added docs on execute hook

[fracek]

Continue in #145. As we discussed on discord, need to publish the package before we can add an example using it.