add xBrowserSync in Recommended Browser Addons + add floccus as mention (#1946)

_includes/sections/browser-addons.html

@@ -57,6 +57,24 @@
   edge="https://microsoftedge.microsoft.com/addons/detail/mdkdmaickkfdekbjdoojfalpbkgaddei"
 %}
 
+{% include cardv2.html
+  title="xBrowserSync"
+  image="/assets/img/svg/3rd-party/xbrowsersync.svg"
+  description='<strong>xBrowserSync</strong> synchronizes bookmarks across devices and browsers with end-to-end encryption. Data is encrypted and decrypted on the device, no one but you can read it. No registration is needed, just enter a randomly generated id or QR code on all devices. <a href="https://www.xbrowsersync.org/#status">Different servers</a> are available, and it can also be <a href="https://github.com/xbrowsersync/api-docker">self-hosted</a>.'
+  website="https://www.xbrowsersync.org/"
+  privacy-policy="https://www.xbrowsersync.org/privacypolicy"
+  github="https://github.com/xbrowsersync"
+  firefox="https://addons.mozilla.org/firefox/addon/xbs/"
+  chrome="https://chrome.google.com/webstore/detail/xbrowsersync/lcbjdhceifofjlpecfpeimnnphbcjgnc"
+  googleplay="https://play.google.com/store/apps/details?id=com.xBrowserSync.android"
+%}
+
+<h3>Worth Mentioning</h3>
+
+<ul>
+  <li><a href="https://floccus.org/">floccus</a> - Synchronize bookmarks across browsers via Nextcloud, WebDAV or a local file (and thus any file sync solution). For <a href="https://addons.mozilla.org/firefox/addon/floccus/">Firefox</a>, <a href="https://chrome.google.com/webstore/detail/floccus-bookmarks-sync/fnaicdffflnofjppbagibeoednhnbjhg">Chrome</a>, <a href="https://microsoftedge.microsoft.com/addons/detail/gjkddcofhiifldbllobcamllmanombji">Edge</a>.</li>
+</ul>
+
 <h2>Additional Functionality</h2>
 
 <div class="alert alert-secondary" role="alert">

assets/img/svg/3rd-party/xbrowsersync.svg

@@ -0,0 +1,2 @@
+<?xml version="1.0" encoding="UTF-8"?>
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