implement player count display

templates/base.html

@@ -10,6 +10,21 @@
         {% include 'navbar_leaderboard.html' %}
 
         <div class="container mt-3 mb-3" role="main">
+            <div id="playerDisplay" class="playerDisplay mb-3 mt-2">
+                <script>
+                    fetch("/players-online").then(
+                            response => response.json()
+                        ).then(
+                            data => { 
+                                if(data["error"] == ""){
+                                    document.getElementById("playerDisplay").innerHTML = "Players Online: " + data["player_total"]
+                                }else{
+                                    document.getElementById("playerDisplay").innerHTML = "Players Online: (error)" + data["error"]
+                                }
+                            }
+                        )
+                </script>
+            </div>
             <table id="tableMain" class="table table-striped table-bordered table-sm"
                     cellspacing="0">
                 <thead>