Refactor app.py and update dependencies

app.py

@@ -4,7 +4,7 @@ from transformers import (
 )
 from transformers import (
     AutoProcessor,
-    BitsAndBytesConfig,
+    # BitsAndBytesConfig,
     LlavaForConditionalGeneration,
 )
 from PIL import Image
@@ -38,12 +38,12 @@ USER_ID = None
 model_id = "blanchon/PixDiet-pixtral-nutrition-v2"
 
 # BitsAndBytesConfig int-4 config
-bnb_config = BitsAndBytesConfig(
-    load_in_4bit=True,
-    bnb_4bit_use_double_quant=True,
-    bnb_4bit_quant_type="nf4",
-    bnb_4bit_compute_dtype=torch.bfloat16,
-)
+# bnb_config = BitsAndBytesConfig(
+#     load_in_4bit=True,
+#     bnb_4bit_use_double_quant=True,
+#     bnb_4bit_quant_type="nf4",
+#     bnb_4bit_compute_dtype=torch.bfloat16,
+# )
 
 # Modify the model and processor initialization
 if TESTING: