chore: change outputs to amplifyConfig in flutter gen 2 docs (#7764)

* chore: change outputs to amplifyConfig in flutter gen 2 docs

* chore: change amplifyconfiguration.dart import to amplify_outputs.dart

* chore: remove --outputs-version 0 and downgrade config file callout

* chore: remove --outputs-version 0 from snippets

* chore: remove gen 2 config conversion callout

* chore: remove amplifyconfiguration.dart references from gen 2

Author: khatruong2009

src/pages/[platform]/build-a-backend/add-aws-services/analytics/record-events/index.mdx

@@ -305,7 +305,7 @@ However, it can take upwards of 30 minutes for the event to display in the Filte
 
 ## Flush events
 
-Events have default configuration to flush out to the network every 30 seconds. If you would like to change this, update `amplifyconfiguration.dart` with the value in milliseconds you would like for `autoFlushEventsInterval`. This configuration will flush events every 10 seconds:
+Events have default configuration to flush out to the network every 30 seconds. If you would like to change this, update `amplify_outputs.dart` with the value in milliseconds you would like for `autoFlushEventsInterval`. This configuration will flush events every 10 seconds:
 
 ```json
 {

src/pages/[platform]/build-a-backend/add-aws-services/analytics/set-up-analytics/index.mdx

@@ -300,7 +300,7 @@ import 'package:amplify_auth_cognito/amplify_auth_cognito.dart';
 import 'package:amplify_flutter/amplify_flutter.dart';
 import 'package:flutter/material.dart';
 
-import 'amplifyconfiguration.dart';
+import 'amplify_outputs.dart';
 
 Future<void> _configureAmplify() async {
   // Add Pinpoint and Cognito Plugins, and any other plugins you want to use
@@ -316,15 +316,15 @@ When running your app on macOS you will need to enable keychain sharing in Xcode
 
 </Callout>
 
-Make sure that the amplifyconfiguration.dart file generated in the project setup is included and sent to Amplify.configure:
+Make sure that the amplify_outputs.dart file generated in the project setup is included and sent to Amplify.configure:
 
 ```dart
 import 'package:amplify_analytics_pinpoint/amplify_analytics_pinpoint.dart';
 import 'package:amplify_auth_cognito/amplify_auth_cognito.dart';
 import 'package:amplify_flutter/amplify_flutter.dart';
 import 'package:flutter/material.dart';
 
-import 'amplifyconfiguration.dart';
+import 'amplify_outputs.dart';
 
 Future<void> _configureAmplify() async {
   // ...
@@ -333,7 +333,7 @@ Future<void> _configureAmplify() async {
   // Once Plugins are added, configure Amplify
   // Note: Amplify can only be configured once.
   try {
-    await Amplify.configure(outputs);
+    await Amplify.configure(amplifyConfig);
   } on AmplifyAlreadyConfiguredException {
     safePrint(
       'Tried to reconfigure Amplify; this can occur when your app restarts on Android.',
@@ -350,7 +350,7 @@ import 'package:amplify_analytics_pinpoint/amplify_analytics_pinpoint.dart';
 import 'package:amplify_auth_cognito/amplify_auth_cognito.dart';
 import 'package:flutter/material.dart';
 
-import 'amplifyconfiguration.dart';
+import 'amplify_outputs.dart';
 
 Future<void> _configureAmplify() async {
   // Add any Amplify plugins you want to use
@@ -361,7 +361,7 @@ Future<void> _configureAmplify() async {
   // Once Plugins are added, configure Amplify
   // Note: Amplify can only be configured once.
   try {
-    await Amplify.configure(outputs);
+    await Amplify.configure(amplifyConfig);
   } on AmplifyAlreadyConfiguredException {
     safePrint(
       'Tried to reconfigure Amplify; this can occur when your app restarts on Android.',

src/pages/[platform]/build-a-backend/auth/set-up-auth/index.mdx

@@ -69,15 +69,9 @@ npx ampx sandbox
 <InlineFilter filters={['flutter']}>
 
 ```bash title="Terminal" showLineNumbers={false}
-npx ampx sandbox --outputs-format dart --outputs-out-dir lib --outputs-version 0
+npx ampx sandbox --outputs-format dart --outputs-out-dir lib
 ```
 
-<Callout info>
-
-**Note:** when using Amplify Gen 2 with Flutter, you must downgrade the generated client configuration file (`amplify_outputs.dart`) with [`--outputs-version 0`](/[platform]/reference/cli-commands/#npx-ampx-generate-outputs)
-
-</Callout>
-
 </InlineFilter>
 <InlineFilter filters={['android']}>
 
@@ -394,7 +388,7 @@ import 'package:amplify_authenticator/amplify_authenticator.dart';
 import 'package:amplify_flutter/amplify_flutter.dart';
 import 'package:flutter/material.dart';
 
-import 'amplifyconfiguration.dart';
+import 'amplify_outputs.dart';
 
 Future<void> main() async {
   try {

src/pages/[platform]/build-a-backend/data/set-up-data/index.mdx

@@ -332,7 +332,7 @@ import 'package:amplify_flutter/amplify_flutter.dart';
 import 'package:flutter/material.dart';
 
 // highlight-start
-import 'amplifyconfiguration.dart';
+import 'amplify_outputs.dart';
 import 'models/ModelProvider.dart';
 // highlight-end
 
@@ -345,7 +345,7 @@ Future<void> main() async {
         )
       );
     await Amplify.addPlugins([api]);
-    await Amplify.configure(outputs);
+    await Amplify.configure(amplifyConfig);
 
     safePrint('Successfully configured Amplify');
   } on Exception catch (e) {

src/pages/[platform]/build-a-backend/storage/set-up-storage/index.mdx

@@ -446,7 +446,7 @@ import 'package:amplify_flutter/amplify_flutter.dart';
 import 'package:amplify_storage_s3/amplify_storage_s3.dart';
 import 'package:flutter/material.dart';
 
-import 'amplifyconfiguration.dart';
+import 'amplify_outputs.dart';
 
 Future<void> _configureAmplify() async {
   try {
@@ -455,7 +455,7 @@ Future<void> _configureAmplify() async {
     await Amplify.addPlugins([auth, storage]);
 
     // call Amplify.configure to use the initialized categories in your app
-    await Amplify.configure(outputs);
+    await Amplify.configure(amplifyConfig);
   } on Exception catch (e) {
     safePrint('An error occurred configuring Amplify: $e');
   }

src/pages/[platform]/build-a-backend/storage/use-with-custom-s3/index.mdx

@@ -120,9 +120,9 @@ To ensure the local **amplify_outputs.json** file is up-to-date, you can run [th
 
 <InlineFilter filters={["flutter"]}>
 
-## Step 3 - Import latest amplifyconfiguration.dart file
+## Step 3 - Import latest amplify_outputs.dart file
 
-To ensure the local **amplifyconfiguration.dart** file is up-to-date, you can run [the npx ampx generate outputs command](/[platform]/reference/cli-commands/#npx-ampx-generate-outputs).
+To ensure the local **amplify_outputs.dart** file is up-to-date, you can run [the npx ampx generate outputs command](/[platform]/reference/cli-commands/#npx-ampx-generate-outputs).
 
 </InlineFilter>
 

src/pages/[platform]/reference/cli-commands/index.mdx

@@ -101,7 +101,7 @@ npx ampx sandbox
 
 ```bash title="Terminal" showLineNumbers={false}
 # for Flutter
-npx ampx sandbox --outputs-format dart --outputs-out-dir lib --outputs-version 0
+npx ampx sandbox --outputs-format dart --outputs-out-dir lib
 ```
 
 ## npx ampx sandbox delete

src/pages/[platform]/start/quickstart/index.mdx

@@ -1313,14 +1313,9 @@ npx ampx sandbox
 </InlineFilter>
 <InlineFilter filters={["flutter"]}>
 ```bash title="Terminal" showLineNumbers={false}
-npx ampx sandbox --outputs-format dart --outputs-out-dir lib --outputs-version 0
+npx ampx sandbox --outputs-format dart --outputs-out-dir lib
 ```
 
-<Callout info>
-
-**Note:** when using Amplify Gen 2 with Flutter, you must downgrade the generated client configuration file (`amplify_outputs.dart`) with [`--outputs-version 0`](/[platform]/reference/cli-commands/#npx-ampx-generate-outputs)
-
-</Callout>
 </InlineFilter>
 
 ## Adding Authentication
@@ -1358,7 +1353,7 @@ import 'package:amplify_authenticator/amplify_authenticator.dart';
 import 'package:amplify_flutter/amplify_flutter.dart';
 import 'package:flutter/material.dart';
 
-import 'amplifyconfiguration.dart';
+import 'amplify_outputs.dart';
 
 Future<void> main() async {
   try {