feat: use consistent file name in gradio (#1932)

* feat: use consistent file name in gradio

returns and uses filepaths instead of numpy image by saving to temp dir
uses double the temp dir file storage on disk as it saves to temp dir and gradio temp dir when displaying the image, but reuses logged output image

* feat: delete temp images after yielding to gradio

* feat: use args temp path if given

* chore: code cleanup, remove redundant if statement

args_manager.py

@@ -1,5 +1,7 @@
 import ldm_patched.modules.args_parser as args_parser
+import os
 
+from tempfile import gettempdir
 
 args_parser.parser.add_argument("--share", action='store_true', help="Set whether to share on Gradio.")
 args_parser.parser.add_argument("--preset", type=str, default=None, help="Apply specified UI preset.")
@@ -40,7 +42,11 @@ args_parser.args.always_offload_from_vram = not args_parser.args.disable_offload
 if args_parser.args.disable_analytics:
     import os
     os.environ["GRADIO_ANALYTICS_ENABLED"] = "False"
+
 if args_parser.args.disable_in_browser:
     args_parser.args.in_browser = False
 
+if args_parser.args.temp_path is None:
+    args_parser.args.temp_path = os.path.join(gettempdir(), 'Fooocus')
+
 args = args_parser.args