update wallet docs for flutter

docs/building-apps/wallet/component/dart/install.mdx

@@ -0,0 +1,13 @@
+import { CodeExample } from "@site/src/components/CodeExample";
+
+<CodeExample>
+
+```dart
+// pubspec.yaml
+stellar_wallet_flutter_sdk: ^0.0.2
+stellar_flutter_sdk: ^1.6.9
+```
+
+</CodeExample>
+
+You can get the latest available version on the [project GitHub page](https://github.com/Soneso/stellar_wallet_flutter_sdk)

docs/building-apps/wallet/intro.mdx

@@ -8,6 +8,7 @@ import { WalletCodeExample as CodeExample } from "@site/src/components/WalletCod
 import Header from "./component/header.mdx";
 import KtInstall from "./component/kt/install.mdx";
 import TsInstall from "./component/ts/install.mdx";
+import DartInstall from "./component/dart/install.mdx";
 import KtHttpConfig from "./component/kt/httpConfig.mdx";
 import KtConfigClient from "./component/kt/configClient.mdx";
 import TsConfigClient from "./component/ts/configClient.mdx";
@@ -18,7 +19,11 @@ import TsConfigClient from "./component/ts/configClient.mdx";
 
 First, you need to add the SDK dependency to your project.
 
-<LanguageSpecific kt={<KtInstall />} ts={<TsInstall />} />
+<LanguageSpecific
+  kt={<KtInstall />}
+  ts={<TsInstall />}
+  dart={<DartInstall />}
+/>
 
 ## Working with the SDK
 
@@ -34,8 +39,8 @@ val wallet = Wallet(StellarConfiguration.Testnet)
 let wallet = walletSdk.Wallet.TestNet();
 ```
 
-```flutter
-final StellarSDK sdk = StellarSDK.TESTNET;
+```dart
+var wallet = Wallet(StellarConfiguration.testNet);
 ```
 
 </CodeExample>
@@ -54,6 +59,10 @@ let wallet = new Wallet({
 });
 ```
 
+```dart
+var wallet = Wallet(StellarConfiguration.publicNet);
+```
+
 </CodeExample>
 
 <LanguageSpecific kt={<KtHttpConfig />} />
@@ -102,6 +111,10 @@ val anchor = wallet.anchor("https://testanchor.stellar.org")
 let anchor = wallet.anchor({ homeDomain: "testanchor.stellar.org" });
 ```
 
+```dart
+var anchor = wallet.anchor("testanchor.stellar.org")
+```
+
 </CodeExample>
 
 And the most basic interaction of fetching a [SEP-1]: Stellar Info File:
@@ -118,6 +131,10 @@ suspend fun anchorToml(): TomlInfo {
 let resp = await anchor.sep1();
 ```
 
+```dart
+var resp = await anchor.sep1();
+```
+
 </CodeExample>
 
 The anchor class also supports [SEP-10]: Stellar Authentication and [SEP-24]: Hosted Deposit and Withdrawal features.

docs/building-apps/wallet/sep10.mdx

@@ -44,7 +44,7 @@ let anchor = wallet.anchor({ homeDomain: "https://testanchor.stellar.org" });
 ```
 
 ```dart
-final webAuth = WebAuth.fromDomain("https://testanchor.stellar.org", Network.TESTNET);
+final anchor = wallet.anchor("testanchor.stellar.org");
 ```
 
 </CodeExample>
@@ -69,9 +69,10 @@ const authToken = await sep10.authenticate({ accountKp: authKey });
 ```
 
 ```dart
-KeyPair authKey = KeyPair.fromSecretSeed("my secret key");
-String accountId = authKey.accountId;
-String jwtToken = await webAuth.jwtToken(accountId, [authKey]);
+final authKey = SigningKeyPair.fromSecret("my secret key");
+final sep10 = await anchor.sep10();
+
+final authToken = await sep10.authenticate(authKey);
 ```
 
 </CodeExample>
@@ -140,25 +141,11 @@ const getAuthToken = async () => {
 ```
 
 ```dart
-// delegate client signing
-String jwtToken = await webAuth.jwtToken(
-  userAccountId,
-  [userKeyPair],
-  clientDomain: "demo-wallet-server.stellar.org",
-  clientDomainSigningDelegate: (transaction) async {
-    // delegate client signing e.g.:
-    return myWalletSigner.signTransaction(transaction, clientKeyPair);
-  }
-);
-
-// alternatively let the SDK also sign with the clientKeyPair
-String jwtToken = await webAuth.jwtToken(
-  userAccountId,
-  [userKeyPair],
-  clientDomain: "demo-wallet-server.stellar.org",
-  clientDomainAccountKeyPair: clientKeyPair
-);
+final signer = DomainSigner("https://demo-wallet-server.stellar.org/sign");
+final sep10 = await anchor.sep10();
 
+final authToken = await sep10.authenticate(userKeyPair,
+  clientDomainSigner: signer, clientDomain: "demo-wallet-server.stellar.org");
 ```
 
 </CodeExample>
@@ -202,6 +189,16 @@ const demoWalletSigner: WalletSigner = {
 };
 ```
 
+```dart
+Map<String, String> requestHeaders = {
+  "Authorization": "Bearer $token",
+  "Content-Type": "application/json"
+};
+
+var signer = DomainSigner("https://demo-wallet-server.stellar.org/sign",
+  requestHeaders: requestHeaders);
+```
+
 </CodeExample>
 
 [//]: # "TODO: update after WAL-882 is completed"