chore: clean up and reorder source code

Classes/Middleware/LanguageRedirectionMiddleware.php

@@ -12,11 +12,16 @@ class LanguageRedirectionMiddleware implements MiddlewareInterface
 {
     public function process(ServerRequestInterface $request, RequestHandlerInterface $handler): ResponseInterface
     {
-        // Do nothing, if a HTTP referer is set
+        // Do nothing, if HTTP referer header is set
         if (! empty($request->getServerParams()['HTTP_REFERER'])) {
             return $handler->handle($request);
         }
 
+        // Do nothing, if HTTP accept language header is not set
+        if (empty($request->getServerParams()['HTTP_ACCEPT_LANGUAGE'])) {
+            return $handler->handle($request);
+        }
+
         // Get the website's configured site languages
         $siteLanguages = $request->getAttribute('site')->getLanguages();
 
@@ -36,11 +41,6 @@ public function process(ServerRequestInterface $request, RequestHandlerInterface
             return $handler->handle($request);
         }
 
-        // Do nothing, if accept language header is not set
-        if (empty($request->getServerParams()['HTTP_ACCEPT_LANGUAGE'])) {
-            return $handler->handle($request);
-        }
-
         // Get the ISO codes of the browser languages from HTTP request header
         $browserLanguageIsoCodes = $this->getBrowserLangugeIsoCodes($request->getServerParams()['HTTP_ACCEPT_LANGUAGE']);