- Fixed the all() function of session

- Defined default session cookie to 12hours

src/Session.php

@@ -32,6 +32,11 @@ class Session
     {
         $_SESSION = [];
     }
+    
+    public static function all() : array
+    {
+        return $_SESSION;
+    }
 
     public static function start(array $options, Cookie $cookie, string $savePath) : void
     {

src/SessionMiddleware.php

@@ -16,7 +16,7 @@ class SessionMiddleware implements MiddlewareInterface
         'domain' => null,
         'secure' => false,
         'httponly' => true,
-        'lifetime' => 28800,  # A day of work ~ 8 hours
+        'lifetime' => 43200,  # A half-day
         'samesite' => "",
     ];