feat!: allow registration of multiple users (#340)

feat: administration area
feat: add reset password functionality

endpoints/user/budget.php

@@ -3,9 +3,6 @@
 require_once '../../includes/connect_endpoint.php';
 require_once '../../includes/inputvalidation.php';
 
-session_start();
-
-
 if (!isset($_SESSION['loggedin']) || $_SESSION['loggedin'] !== true) {
     die(json_encode([
         "success" => false,
@@ -28,8 +25,6 @@ if ($_SERVER["REQUEST_METHOD"] === "POST") {
     } else {
         $budget = $data["budget"];
 
-        $userId = $_SESSION['userId'];
-
         $sql = "UPDATE user SET budget = :budget WHERE id = :userId";
         $stmt = $db->prepare($sql);
         $stmt->bindValue(':budget', $budget, SQLITE3_TEXT);