chore: Updated index.php

Author: usernane

public/index.php

@@ -2,12 +2,16 @@
 
 namespace WebFiori;
 
-$DS = DIRECTORY_SEPARATOR;
-
-require __DIR__.$DS.'..'.$DS.'vendor'.$DS.'autoload.php';
+require __DIR__ . '/../vendor/autoload.php';
 
 use WebFiori\Framework\App;
 
-App::initiate('App', 'public', __DIR__);
-App::start();
-App::handle();
+// First parameter is the name of the application directory.
+try {
+    App::initiate('App', 'public', __DIR__);
+    App::start();
+    App::handle();
+} catch (\Throwable $e) {
+    http_response_code(500);
+    echo 'Internal Server Error';
+}