fix snippets, add email: true

Author: josefaidt

src/pages/[platform]/build-a-backend/auth/concepts/external-identity-providers/index.mdx

@@ -123,6 +123,7 @@ import { defineAuth, secret } from '@aws-amplify/backend';
 
 export const auth = defineAuth({
   loginWith: {
+    email: true,
     externalProviders: {
       google: {
         clientId: secret('GOOGLE_CLIENT_ID'),
@@ -160,6 +161,7 @@ import { defineAuth, secret } from '@aws-amplify/backend';
 
 export const auth = defineAuth({
   loginWith: {
+    email: true,
     externalProviders: {
       google: {
         clientId: secret('GOOGLE_CLIENT_ID'),
@@ -265,6 +267,7 @@ import { defineAuth } from '@aws-amplify/backend';
 
 export const auth = defineAuth({
   loginWith: {
+    email: true,
     externalProviders: {
       loginWithAmazon: {
         clientId: secret('LOGINWITHAMAZON_CLIENT_ID'),
@@ -290,6 +293,7 @@ import { defineAuth } from '@aws-amplify/backend';
 
 export const auth = defineAuth({
   loginWith: {
+    email: true,
     externalProviders: {
       loginWithAmazon: {
         clientId: secret('LOGINWITHAMAZON_CLIENT_ID'),
@@ -323,6 +327,7 @@ import { defineAuth } from '@aws-amplify/backend';
 
 export const auth = defineAuth({
   loginWith: {
+    email: true,
     externalAuthProviders: {
       loginWithAmazon: {
         clientId: secret('LOGINWITHAMAZON_CLIENT_ID'),
@@ -351,6 +356,7 @@ import { defineAuth } from '@aws-amplify/backend';
 
 export const auth = defineAuth({
   loginWith: {
+    email: true,
     externalAuthProviders: {
       loginWithAmazon: {
         clientId: secret('LOGINWITHAMAZON_CLIENT_ID'),