Adding on_website and preferred part indicators

app/templates/admin/_augmented_parts_table.html

@@ -44,6 +44,7 @@
       {% endfor %}
     </select>
     <label><input type="checkbox" name="include_archived" {{ "checked" if include_archived }}> Show archived</label>
+    <label><input type="checkbox" name="on_website" {{ "checked" if on_website }}> On website</label>
   </form>
 </div>