Minor fixes

src/app.py

@@ -2,7 +2,7 @@ import logging
 import os
 from flask import Flask, render_template, request, jsonify
 from flask_cors import CORS
-import src.worker_huggingface as worker_huggingface  # Import the worker module
+import worker_huggingface # Import the worker module
 
 # Initialize Flask app and CORS
 app = Flask(__name__)

src/worker_huggingface.py

@@ -2,10 +2,10 @@ import os
 import torch
 from langchain_core.prompts import PromptTemplate
 from langchain.chains import RetrievalQA
-from langchain.embeddings import HuggingFaceInstructEmbeddings
-from langchain.document_loaders import PyPDFLoader
+from langchain_community.embeddings import HuggingFaceInstructEmbeddings
+from langchain_community.document_loaders import PyPDFLoader
 from langchain.text_splitter import RecursiveCharacterTextSplitter
-from langchain.vectorstores import Chroma
+from langchain_community.vectorstores import Chroma
 from langchain_huggingface import HuggingFaceEndpoint
 
 # Check for GPU availability and set the appropriate device for computation.