DEV: Use caret up/down as they are computed values

assets/javascripts/discourse-assign/controllers/assign-user.js

@@ -73,6 +73,7 @@ export default Controller.extend(ModalFunctionality, {
 
   @action
   handleTextAreaKeydown(value, event) {
+    console.log(event);
     if ((event.ctrlKey || event.metaKey) && event.key === "Enter") {
       this.assign();
     }

assets/javascripts/discourse/templates/modal/assign-user.hbs

@@ -8,7 +8,6 @@
         onChange=(action "assignUsername")
         autofocus="autofocus"
         showUserStatus=true
-        caretIcon="search"
         options=(hash
           mobilePlacementStrategy="absolute"
           filterPlaceholder=placeholderKey
@@ -21,6 +20,8 @@
           autofocus=autofocus
           tabindex=1
           expandedOnInsert=(not assigneeName)
+          caretUpIcon="search"
+          caretDownIcon="search"
         )
       }}
       {{#if this.assigneeError}}
@@ -72,4 +73,4 @@
     disabled=disabled
   }}
   <DModalCancel @close={{route-action "closeModal"}} />
-</div>
+</div>