Refactor response classes (#2113)

* sync remote

* refactor response classes

* adjust permissions

* adjuste permissions

* move from multiprocessing to threading

* fix file perm

* revert threading

* revert except block

* adjust lint and tests

* fix lint

* fix perm

* update comments

* changes based on PR comments

* changes based on PR comments

* update file comments

* remove pylint

* adjust attributes

* test assert helper

* test assert helper

* test assert helper

* test assert helper

package/kedro_viz/api/apps.py

@@ -15,7 +15,7 @@
 from jinja2 import Environment, FileSystemLoader
 
 from kedro_viz import __version__
-from kedro_viz.api.rest.responses import EnhancedORJSONResponse
+from kedro_viz.api.rest.responses.utils import EnhancedORJSONResponse
 from kedro_viz.integrations.kedro import telemetry as kedro_telemetry
 
 from .graphql.router import router as graphql_router