Added CORS, added specific type for token in AuthToken.cs, added login page to blazor client

SchengenVisaApi/ApplicationLayer/InfrastructureServicesInterfaces/ITokenGenerator.cs

@@ -0,0 +1,11 @@
+using ApplicationLayer.Services.AuthServices.Common;
+using Domains.Users;
+
+namespace ApplicationLayer.InfrastructureServicesInterfaces;
+
+/// Generates jwt-tokens
+public interface ITokenGenerator
+{
+    /// returns jwt-token for specific user
+    AuthToken CreateToken(User user);
+}