FIxed bug caused by doubling of upgrade sums. made table headers sticky so that they stay in position when scrolled past.

Views/Admin/Index.cshtml

@@ -37,7 +37,7 @@
                 </div>
             </div>
             <table class="table table-hover">
-                <thead>
+                <thead class="sticky-top">
                     <tr class="d-flex">
                         <th scope="col" class="col-4">Token</th>
                         <th scope="col" class="col-6">Issued To</th>
@@ -62,7 +62,7 @@
             <span class="lead">Users</span>
             <hr />
             <table class="table table-hover">
-                <thead>
+                <thead class="sticky-top">
                     <tr class="d-flex">
                         <th scope="col" class="col-4">Username</th>
                         <th scope="col" class="col-4">Email</th>