change svg to class based icon

Author: Greeshmanth1909

www/index.html

@@ -790,10 +790,9 @@ <h3 data-i18n="configure-expert-settings-title">Expert settings</h3>
                     </div>
                 </div>
                 <div id="navigationButtons" class="btn-group btn-block" style="padding-left: 5%;">
-                    <div class="dropup" >
-                        <a href="#" class="btn btn-default dropdown-toggle col-xs-4" role="button" id="dropup" data-toggle="dropdown" aria-haspopup="true" aria-expanded="True" style="font-size: 14px; padding-top: 12px;">
-                            <svg xmlns="http://www.w3.org/2000/svg" height="20" width="22.5" viewBox="0 0 576 512"><path fill="#74C0FC" d="M0 96C0 60.7 28.7 32 64 32H512c35.3 0 64 28.7 64 64V416c0 35.3-28.7 64-64 64H64c-35.3 0-64-28.7-64-64V96zM128 288a32 32 0 1 0 0-64 32 32 0 1 0 0 64zm32-128a32 32 0 1 0 -64 0 32 32 0 1 0 64 0zM128 384a32 32 0 1 0 0-64 32 32 0 1 0 0 64zm96-248c-13.3 0-24 10.7-24 24s10.7 24 24 24H448c13.3 0 24-10.7 24-24s-10.7-24-24-24H224zm0 96c-13.3 0-24 10.7-24 24s10.7 24 24 24H448c13.3 0 24-10.7 24-24s-10.7-24-24-24H224zm0 96c-13.3 0-24 10.7-24 24s10.7 24 24 24H448c13.3 0 24-10.7 24-24s-10.7-24-24-24H224z"/></svg>
-                            <span class="caret"></span>
+                    <div class="dropup">
+                        <a href="#" class="btn btn-lg dropdown-toggle col-xs-4" role="button" id="dropup" data-toggle="dropdown" aria-haspopup="true" aria-expanded="True" style="font-size: 14px; padding-top: 12px;">
+                            <i class="fas fa-list-alt fa-lg"></i>
                         </a>
                         <ul id="ToCList" class="dropdown-menu flex-container" style="overflow-y:auto; padding-top: 10px; padding-bottom: 10px; padding-right: 10px; padding-left: 10px; position: absolute; left: 10px;"></ul>
                     </div>