Fix part import form

InvenTree/part/templates/part/category_navbar.html

@@ -27,7 +27,7 @@
 
     {% if show_import and user.is_staff and roles.part.add %}
     <li class='list-group-item' title='{% trans "Import Parts" %}'>
-        <a href='#' id='select-part-import' class='nav-toggle'>
+        <a href='{% url "part-import" %}'>
             <span class='fas fa-file-upload sidebar-icon'></span>
             {% trans "Import Parts" %}
         </a>

InvenTree/part/templates/part/import_wizard/part_upload.html

@@ -1,13 +1,9 @@
-{% extends "part/category.html" %}
+{% extends "base.html" %}
 {% load inventree_extras %}
 {% load i18n %}
 {% load static %}
 
-{% block menubar %}
-{% include 'part/category_navbar.html' with tab='import' %}
-{% endblock %}
-
-{% block category_content %}
+{% block content %}
     <div class='panel panel-default panel-inventree'>
         <div class='panel-heading'>
             <h4>