chore: add Hugging Face token login for model access

Enable secure access to Hugging Face models by logging in with the HF_TOKEN environment variable. This ensures proper authentication when loading the model for mental analysis.

app.py

@@ -637,7 +637,10 @@ if selected == 'Data Visualization':
 import torch
 from transformers import pipeline, AutoModelForSequenceClassification, AutoTokenizer
 
+import os
+from huggingface_hub import login
 
+login(token=os.environ.get("HF_TOKEN"))
 
 if selected == "Mental-Analysis":
     # Load the Hugging Face model