Update app.py

I found out what gpu_initialisation() is for, so I resurrected it. This guy is **just a dummy function**.
In Zero GPU space, app.py or wherever, one function with @spaces decorator must be present or it will crash without question. That's probably why this guy was created.

app.py

@@ -123,7 +123,7 @@ async def health() -> JSONResponse:
 # try executingx gpu_initialization() not within infer_lisa_gradio()
 # gpu_initialization()
 
-@spaces.GPU
+#@spaces.GPU
 def infer_lisa_gradio(request_input: StringPromptApiRequestBody) -> str:
     from samgis_lisa.io_package.wrappers_helpers import get_parsed_bbox_points_with_string_prompt
     from samgis_lisa.prediction_api import lisa
@@ -143,7 +143,7 @@ def infer_lisa_gradio(request_input: StringPromptApiRequestBody) -> str:
             app_logger.debug(f"body_request:type(source):{type(source)}, source:{source}.")
             app_logger.debug(f"body_request:type(source_name):{type(source_name)}, source_name:{source_name}.")
             app_logger.debug(f"lisa module:{lisa}.")
-            # gpu_initialization()
+            gpu_initialization()
             output = lisa.lisa_predict(
                 bbox=body_request["bbox"], prompt=body_request["prompt"], zoom=body_request["zoom"],
                 source=source, source_name=source_name, inference_function_name_key=LISA_INFERENCE_FN,