Change the navbar-toggler-icon to the font-awesome icon

templates/sidenav.html

@@ -2,7 +2,7 @@
   <nav class="smalltopics no-background navbar navbar-expand-lg navbar-light bg-white p-0 fixed">
     <label class="side-toggler" for="menu-toggle">
       <a class="btn btn-lg outline-primary text-primary navbar-toggler" data-toggle="collapse" data-target="#navbarSupportedTopicsContent" aria-controls="navbarSupportedTopicsContent" aria-expanded="false" aria-label="Toggle navigation">
-        <span class="navbar-toggler-icon"></span>
+        <i class="fas"></i>
       </a>
     </label>
     <input type="checkbox" id="menu-toggle"/>