✨ Add user register mutation

🔥 Remove a bunch of legacy code

templates/inventory.html

@@ -6,13 +6,6 @@
     <div class="row">
         <div class="col-md-7">
             <h2>Varebeholdning</h2>
-            <!-- TODO History view -->
-            <!--<div class="text-right">
-                <div class="btn-group">
-                    <a href="#list" class="btn btn-default"><i class="glyphicon glyphicon-list"></i> Liste</a>
-                    <a href="#stats" class="btn btn-default"><i class="glyphicon glyphicon-stats"></i> Historikk</a>
-                </div>
-            </div>-->
             <table class="table table-striped">
                 <thead>
                 <tr>