Removed lodash as a dependency 🗑

ref #99

src/components/users/UserDetail.svelte

@@ -1,6 +1,5 @@
 <script>
   import { _ } from "svelte-i18n";
-  import lodashIsEqual from "lodash.isequal";
   import store from "../../store";
   import isEmail from "validator/es/lib/isEmail";
   import { UserService, UserGroupService } from "@odit/lfk-client-js";
@@ -69,7 +68,7 @@
   UserGroupService.userGroupControllerGetAll().then((data) => {
     allgroups = data;
   });
-  $: changes_performed = !lodashIsEqual(original_data, editable_userdata);
+  $: changes_performed = !(JSON.stringify(original_data) == JSON.stringify(editable_userdata));
   $: groups_changed =
     JSON.stringify(usergroups_array) ===
     JSON.stringify(usergroups_array_original);