TF-624 Implement authentication oidc on browser

lib/features/login/data/network/authentication_client/authentication_client_base.dart

@@ -6,7 +6,7 @@ import 'package:tmail_ui_user/features/login/data/network/authentication_client/
   if (dart.library.html) 'package:tmail_ui_user/features/login/data/network/authentication_client/authentication_client_web.dart';
 
 abstract class AuthenticationClientBase {
-  Future authenticateOidcOnBrowser(
+  Future<void> authenticateOidcOnBrowser(
       String clientId,
       String redirectUrl,
       String discoveryUrl,

lib/features/login/data/network/authentication_client/authentication_client_mobile.dart

@@ -77,7 +77,7 @@ class AuthenticationClientMobile implements AuthenticationClientBase {
   }
 
   @override
-  Future authenticateOidcOnBrowser(String clientId, String redirectUrl,
+  Future<void> authenticateOidcOnBrowser(String clientId, String redirectUrl,
       String discoveryUrl, List<String> scopes) {
     return Future.value(null);
   }

lib/features/login/data/network/authentication_client/authentication_client_web.dart

@@ -32,7 +32,7 @@ class AuthenticationClientWeb implements AuthenticationClientBase {
   }
 
   @override
-  Future authenticateOidcOnBrowser(String clientId, String redirectUrl,
+  Future<void> authenticateOidcOnBrowser(String clientId, String redirectUrl,
       String discoveryUrl, List<String> scopes) async {
     await _appAuthWeb.authorizeAndExchangeCode(
         AuthorizationTokenRequest(