add syncthing on EN page

en/index.html

@@ -338,6 +338,25 @@
         <a href="https://element.hostux.net/" target="_blank" class="btn btn-outline-dark card-link">element.hostux.net</a>
       </div>
     </div>
+    
+        <!-- Syncthing -->
+    <div class="card">
+      <div class="card-header">
+        <h5>
+          Syncthing Relay
+          <img class="service-img" src="/static/img/syncthing.png" alt="syncthing">
+        </h5>
+      </div>
+      <div class="card-body">
+        <p class="my-2">
+          Syncthing is a free, open-source, peer-to-peer, continuous file synchronization
+          program that works across multiple devices.
+        </p>
+      </div>
+      <div class="card-footer">
+        <a href="https://syncthing.hostux.net/" target="_blank" class="btn btn-outline-dark card-link">syncthing.hostux.net</a>
+      </div>
+    </div>
        
             <!-- Piped -->
     <div class="card">

en/syncthing.html

@@ -9,12 +9,11 @@
     
       <meta property="og:title" content="Hostux">
       <meta property="og:type" content="website">
-      <meta property="og:url" content="https://hostux.network/en/syncthing.html">
+      <meta property="og:url" content="https://hostux.network/fr/syncthing.html">
     
     <link rel="stylesheet" href="/static/lib/bootstrap/dist/css/bootstrap.min.css">
     <link rel="stylesheet" href="/static/lib/fork-awesome/css/fork-awesome.min.css">
     <link rel="stylesheet" href="/static/css/app.css">
-    <link rel="prefetch" type="application/l10n" href="static/locales.ini">
     
     <link rel="shortcut icon" href="/favicon.ico">
   </head>