fix(dart_frog_prod_server): retain serveStaticAssets from route configuration (#299)

Author: felangel

bricks/dart_frog_prod_server/hooks/pre_gen.dart

@@ -46,6 +46,7 @@ Future<void> preGen(
     'globalMiddleware': configuration.globalMiddleware != null
         ? configuration.globalMiddleware!.toJson()
         : false,
+    'serveStaticFiles': configuration.serveStaticFiles,
     'invokeCustomEntrypoint': configuration.invokeCustomEntrypoint,
     'pathDependencies': await getPathDependencies(projectDirectory),
   };

bricks/dart_frog_prod_server/hooks/test/pre_gen_test.dart

@@ -92,6 +92,7 @@ void main() {
           'routes': <RouteFile>[],
           'middleware': <MiddlewareFile>[],
           'globalMiddleware': false,
+          'serveStaticFiles': false,
           'invokeCustomEntrypoint': true,
           'pathDependencies': <String>[]
         }),
@@ -167,6 +168,7 @@ void main() {
             {'name': 'hello_middleware', 'path': 'hello/middleware.dart'}
           ],
           'globalMiddleware': {'name': 'middleware', 'path': 'middleware.dart'},
+          'serveStaticFiles': true,
           'invokeCustomEntrypoint': false,
           'pathDependencies': <String>[],
         }),