Refactor import paths in routes.py to remove campus_activity_system prefix

routes.py

@@ -1,10 +1,10 @@
 from flask import Blueprint, request, jsonify,render_template_string
 from models import db, Activity
-from campus_activity_system.utils.nlp_utils import classify_activity_type
+from utils.nlp_utils import classify_activity_type
 from flask import Blueprint, request, jsonify
 from models import db, User
-from campus_activity_system.utils.ocr_utils import extract_text_from_image
-from campus_activity_system.utils.nlp_utils import extract_information
+from utils.ocr_utils import extract_text_from_image
+from utils.nlp_utils import extract_information
 import os
 activity_bp = Blueprint('activity', __name__)
 user_bp = Blueprint('user', __name__)