Fix mobile menu button icon

lang/en_us.php

@@ -125,5 +125,6 @@ define("STRINGS", [
     "navbar options" => "Site Menu Options",
     "in navbar" => "Add page to menu",
     "navbar title" => "Page title for menu",
-    "navbar position" => "Menu position (drag to change position):"
+    "navbar position" => "Menu position (drag to change position):",
+    "remove image" => "Remove image"
 ]);

public/themes/verti/assets/css/main.css

@@ -2264,10 +2264,10 @@ ol.default li {
 
     #navToggle .toggle:before {
         display: inline-block;
-        font-family: FontAwesome;
+        font-family: "Font Awesome 5 Free";
+        font-weight: 900;
         text-decoration: none;
         font-style: normal;
-        font-weight: normal;
         -webkit-font-smoothing: antialiased;
         -moz-osx-font-smoothing: grayscale;
         position: absolute;