move memory-cache injection to Application-layer

EnvelopeGenerator.Application/DependencyInjection.cs

@@ -58,6 +58,9 @@ public static class DependencyInjection
             cfg.RegisterServicesFromAssembly(Assembly.GetExecutingAssembly());
         });
 
+        // Add memory cache
+        services.AddMemoryCache();
+
         return services;
     }
 }

EnvelopeGenerator.Web/Program.cs

@@ -193,8 +193,6 @@ try
 
     builder.Services.AddDispatcher<EGDbContext>();
 
-    builder.Services.AddMemoryCache();
-
     builder.ConfigureBySection<CustomImages>();
 
     builder.ConfigureBySection<AnnotationParams>();