fix:更新已知bug,优化代码

app/index/middleware/StaticFile.php

@@ -24,14 +24,15 @@ use Webman\Http\Request;
  */
 class StaticFile implements MiddlewareInterface
 {
-    public function process(Request $request, callable $next): Response
+    public function process(Request $request, callable $handler): Response
     {
         // Access to files beginning with. Is prohibited
-        if (strpos($request->path(), '/.') !== false) {
+        if (str_contains($request->path(), '/.')) {
             return response('<h1>403 forbidden</h1>', 403);
         }
+
         /** @var Response $response */
-        $response = $next($request);
+        $response = $handler($request);
         // Add cross domain HTTP header
         /*$response->withHeaders([
             'Access-Control-Allow-Origin'      => '*',