Created Axum routing for localhost, also SQL Table structure

Added a axum router and listener for serving a web page on localhost.
Also a sql table structure was created with sqlx migrate for storing
tickets and users

migrations/20260422094717_user_table.sql

@@ -0,0 +1,6 @@
+CREATE TABLE users (
+    id SMALLINT PRIMARY KEY AUTOINCREMENT,
+    name VARCHAR(30),
+    firstname VARCHAR(30),
+    is_admin BOOLEAN NOT NULL DEFAULT false
+);