Fix: Update Groq import and add langchain-groq dependency

app.py

@@ -6,7 +6,7 @@ import tempfile
 import pandas as pd
 import sqlite3
 from langchain_core.prompts import ChatPromptTemplate
-from langchain_community.llms import Groq
+from langchain_groq import ChatGroq
 import plotly.express as px
 import time
 import plotly.io as pio
@@ -31,7 +31,7 @@ from backend.main import DocumentAssistant
 document_assistant = DocumentAssistant()
 
 # Initialize the LLM using the llama3-8b-8192 model from Groq
-llm = Groq(
+llm = ChatGroq(
     model="llama3-8b-8192",
     temperature=0,
     max_tokens=None,

requirements.txt

@@ -10,4 +10,5 @@ gradio>=4.19.0
 python-dotenv>=1.0.0
 plotly>=5.14.0
 kaleido>=0.2.1
-numpy>=1.24.0
+numpy>=1.24.0
+langchain-groq>=0.1.0