Improve the UI with FontAwesome icons

customize.dist/Header.html

@@ -0,0 +1,23 @@
+<!-- This is an HTML fragment which is included into the bottom toolbar -->
+<div>
+  <div class="top-bar">
+    <div class="bottom-bar-left">
+      <span class="bottom-bar-language">
+        <select id="language-selector">
+          <option value="en">English</option>
+          <option value="fr">Français</option>
+        </select>
+      </span>
+      <p data-localization="bottom_france">
+      </p>
+    </div>
+    <!--
+    <div class="bottom-bar-center">
+      <p><a href="https://github.com/xwiki-labs/cryptpad">Fork me on GitHub</a></p>
+    </div> -->
+    <div class="bottom-bar-right">
+      <p data-localization="bottom_support">
+      </p>
+    </div>
+  </div>
+</div>