Remove no longer used loggedIn field in BasicCredentials copy constructor

lib/models/auth/basic_credentials.dart

@@ -48,7 +48,6 @@ class BasicCredentials implements ICredentials {
     String? username,
     String? password,
     String? serverName,
-    bool? loggedIn,
   }) {
     return BasicCredentials(
       username: username ?? this.username,