[skip ci] refactor into options argument

app/assets/javascripts/gl_dropdown.js

@@ -350,7 +350,12 @@ GitLabDropdown = (function() {
         selectedObj = selected ? selected[0] : null;
         isMarking = selected ? selected[1] : null;
         if (this.options.clicked) {
-          this.options.clicked.call(this, selectedObj, $el, e, isMarking);
+          this.options.clicked.call(this, {
+            user: selectedObj,
+            $el,
+            e,
+            isMarking,
+          });
         }
 
         // Update label right after all modifications in dropdown has been done

app/assets/javascripts/users_select.js

@@ -290,7 +290,9 @@ import eventHub from './sidebar/event_hub';
             },
             multiSelect: $dropdown.hasClass('js-multiselect'),
             vue: $dropdown.hasClass('js-issue-board-sidebar'),
-            clicked: function(user, $el, e, isMarking) {
+            clicked: function(options) {
+              const { user, $el, e, isMarking } = options;
+
               if ($dropdown.hasClass('js-multiselect')) {
                 const isActive = $el.hasClass('is-active');
                 const previouslySelected = $dropdown.closest('.selectbox')