feat(app.py): add check and modify 'Download Model' tab footer text

app.py

@@ -44,15 +44,16 @@ except (ValueError, TypeError, IndexError):
     DoFormant, Quefrency, Timbre = False, 1.0, 1.0
     CSVutil('csvdb/formanting.csv', 'w+', 'formanting', DoFormant, Quefrency, Timbre)
 
-# Download hubert base model
-response = requests.get('https://huggingface.co/lj1995/VoiceConversionWebUI/resolve/main/hubert_base.pt')
-
-if response.status_code == 200:
-    with open('./hubert_base.pt', 'wb') as f:
-        f.write(response.content)
-    print("Downloaded hubert base model file successfully. File saved to ./hubert_base.pt.")
-else:
-    raise Exception("Failed to download hubert base model file. Status code: " + str(response.status_code) + ".")
+# Download hubert base model if not present
+if not os.path.isfile('./hubert_base.pt'):
+    response = requests.get('https://huggingface.co/lj1995/VoiceConversionWebUI/resolve/main/hubert_base.pt')
+
+    if response.status_code == 200:
+        with open('./hubert_base.pt', 'wb') as f:
+            f.write(response.content)
+        print("Downloaded hubert base model file successfully. File saved to ./hubert_base.pt.")
+    else:
+        raise Exception("Failed to download hubert base model file. Status code: " + str(response.status_code) + ".")
 
 print("\n-------------------------------\nRVC v2 Easy GUI (Local Edition)\n-------------------------------\n")
 
@@ -1816,11 +1817,10 @@ with gr.Blocks(theme=gr.themes.Base(), title='Mangio-RVC-Web 💻') as app:
             with gr.Row():
                 gr.Markdown(
                 """
-                Made with ❤️ by [Alice Oliveira](https://github.com/aliceoq)
-                Hosted with ❤️ by [Mateus Elias](https://github.com/mateuseap)
+                Made with ❤️ by [Alice Oliveira](https://github.com/aliceoq) | Hosted with ❤️ by [Mateus Elias](https://github.com/mateuseap)
                 """
                 )
-                
+
         def has_two_files_in_pretrained_folder():
             pretrained_folder = "./pretrained/"
             if not os.path.exists(pretrained_folder):