fix(sdk.ts) - error handling

[cryptoryda]

REASON:

• Using optional chaining ensures that if response.error is undefined or null, the code won't throw a runtime error. Instead, it gracefully checks whether error exists before attempting to access its type property.

ACTUAL CHANGE MADE:

• fix from

if (response.error.type === 'rejected_by_user') {
        throw new SignIn.RejectedByUser()
      }

to

  if (response.error?.type === "rejected_by_user") {
        throw new SignIn.RejectedByUser();
      }

• other same fixes in file sdk.ts to handle type of error.

[changeset-bot]

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Latest commit: 43561ab

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[cryptoryda]

Hi @deodad
Feel free to let me know if you have any questions regarding this PR