Moved middleware configuration to separated file

SchengenVisaApi/SchengenVisaApi/RequestPipeline.cs

@@ -0,0 +1,19 @@
+namespace SchengenVisaApi
+{
+    /// Provides methods for configuring middleware
+    public static class PipelineRequest
+    {
+        /// Configure general middleware
+        public static WebApplication ConfigurePipelineRequest(this WebApplication app)
+        {
+            app.UseSwagger()
+                .UseSwaggerUI();
+
+            app.UseHttpsRedirection();
+
+            app.MapControllers();
+
+            return app;
+        }
+    }
+}