Add blueprint scaffold for timer functions

extensions.py

@@ -0,0 +1,17 @@
+from jinja2 import Environment, FileSystemLoader, select_autoescape
+from db import DataBase
+from flask_htmx import HTMX
+from flask import url_for
+
+db = DataBase()
+htmx = HTMX()
+
+environment = Environment(
+    loader=FileSystemLoader("templates"),
+    autoescape=select_autoescape(("html", "jinja2"))
+)
+environment.globals['url_for'] = url_for
+
+
+def init_app(app):
+    htmx.init_app(app)