fix: 7702 client loading state

[jakehobbs]

Checked out 7702 demo branch and found this error there whenever refreshing the page:

useSma7702Client.ts:81 Error: No orgId provided
    at AlchemySignerWebClient.value [as whoami] (base.ts:242:13)
    at AlchemyWebSigner.eval (base.ts:392:44)
    at AlchemyWebSigner.eval [as getAddress] (index.ts:32:29)
    at createSMA7702Account (semiModularAccount7702.ts:67:38)
    at createSMA7702AccountClient (sma7702.ts:71:52)
    at init (useSma7702Client.ts:48:43)
    at eval (useSma7702Client.ts:91:5)

This is due to the useSma7702Client hook trying to create the 7702 account client before the signer is fully initialized after rehydrating when the page is refreshed. This results in the 7702 components being fully broken because the client never loads.

Added a status check via useSignerStatus and the issue is resolved. Now you can refresh the page and everything works correctly.

Also added some better loading states for disabling the buttons before the client is ready.

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PR-Codex overview

This PR enhances the useSma7702Client hook to include an isLoadingClient state and updates the usage of this hook in useRecurringTransactions and useMint. It also modifies the Wrapper7702 component to reflect these changes, improving loading state management across components.

Detailed summary

• Added isLoadingClient state to useSma7702Client.
• Updated useRecurringTransactions to destructure isLoadingClient.
• Modified useMint to include isLoadingClient in loading checks.
• Changed Wrapper7702 to use isLoadingClient for disabling the TransactionsCard.

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[linnall]

looks good, thanks for fixing this!