Move auth logic to blueprint

extensions.py

@@ -2,9 +2,11 @@ from jinja2 import Environment, FileSystemLoader, select_autoescape
 from db import DataBase
 from flask_htmx import HTMX
 from flask import url_for
+from flask_login import LoginManager
 
 db = DataBase()
 htmx = HTMX()
+login_manager = LoginManager()
 
 environment = Environment(
     loader=FileSystemLoader("templates"),