[App] Porting fixes to autoscaler component (#16249)

* autoscaler update

* cold-start-proxy-updates

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
Co-authored-by: Ethan Harris <[email protected]>

Author: 3 people

src/lightning_app/components/__init__.py

@@ -8,7 +8,8 @@
 )
 from lightning_app.components.python.popen import PopenPythonScript
 from lightning_app.components.python.tracer import Code, TracerPythonScript
-from lightning_app.components.serve.auto_scaler import AutoScaler, ColdStartProxy
+from lightning_app.components.serve.auto_scaler import AutoScaler
+from lightning_app.components.serve.cold_start_proxy import ColdStartProxy
 from lightning_app.components.serve.gradio import ServeGradio
 from lightning_app.components.serve.python_server import Category, Image, Number, PythonServer, Text
 from lightning_app.components.serve.serve import ModelInferenceAPI

src/lightning_app/components/serve/__init__.py

@@ -1,4 +1,5 @@
-from lightning_app.components.serve.auto_scaler import AutoScaler, ColdStartProxy
+from lightning_app.components.serve.auto_scaler import AutoScaler
+from lightning_app.components.serve.cold_start_proxy import ColdStartProxy
 from lightning_app.components.serve.gradio import ServeGradio
 from lightning_app.components.serve.python_server import Category, Image, Number, PythonServer, Text
 from lightning_app.components.serve.streamlit import ServeStreamlit