feat: nonce & response_type: 'id_token' support s

[reslear]

part of

https://developers.google.com/identity/protocols/oauth2/javascript-implicit-flow

and need for example sui zklogin enoki

https://github.com/MystenLabs/sui/blob/b516d265b27ff69f8fe37946c7c50b522de5e7ac/sdk/enoki/src/EnokiFlow.ts#L123-L126

[reslear]

i found code:

vue3-google-signin/src/components/GoogleSignInButton.vue

Line 266 in bc90e06

nonce: props.nonce,

so it turns out it's implemented, but in a button:

• nonce - seta as button prop
• id_token - is response.credential in @success cb.

<script>
const nonce = ref('')

// handle success event
const handleLoginSuccess = async (response: CredentialResponse) => {
  // response.credential is id_token!
  console.log('id_token=' + response.credential)
}

// handle an error event
const handleLoginError = () => {}
</script>

<template>
  <GoogleSignInButton
    v-if="nonce"
    :nonce="nonce"
    @success="handleLoginSuccess"
    @error="handleLoginError"
  ></GoogleSignInButton>
</template>

• So necessary to do it using the usual method for a custom button.