DEV: Update glimmer menu to use value transformer (#30930)

- Use the `smallUserAttrs` function in the new glimmer menu  
- Replace the sugar syntax `@data` with `this.args` to fix tests

app/assets/javascripts/discourse/app/components/post/menu.gjs

@@ -9,12 +9,13 @@ import { and, eq } from "truth-helpers";
 import AdminPostMenu from "discourse/components/admin-post-menu";
 import DeleteTopicDisallowedModal from "discourse/components/modal/delete-topic-disallowed";
 import PluginOutlet from "discourse/components/plugin-outlet";
-import SmallUserList from "discourse/components/small-user-list";
+import SmallUserList, {
+  smallUserAttrs,
+} from "discourse/components/small-user-list";
 import UserTip from "discourse/components/user-tip";
 import concatClass from "discourse/helpers/concat-class";
 import DAG from "discourse/lib/dag";
 import { applyMutableValueTransformer } from "discourse/lib/transformer";
-import { userPath } from "discourse/lib/url";
 import { i18n } from "discourse-i18n";
 import PostMenuButtonConfig from "./menu/button-config";
 import PostMenuButtonWrapper from "./menu/button-wrapper";
@@ -64,16 +65,6 @@ const coreButtonComponents = new Map([
   [buttonKeys.SHOW_MORE, PostMenuShowMoreButton],
 ]);
 
-function smallUserAttributes(user) {
-  return {
-    template: user.avatar_template,
-    username: user.username,
-    post_url: user.post_url,
-    url: userPath(user.username_lower),
-    unknown: user.unknown,
-  };
-}
-
 const defaultDagOptions = {
   defaultPosition: { before: buttonKeys.SHOW_MORE },
   throwErrorOnCycle: false,
@@ -565,7 +556,7 @@ export default class PostMenu extends Component {
       post_action_type_id: LIKE_ACTION,
     });
 
-    this.likedUsers = users.map(smallUserAttributes);
+    this.likedUsers = users.map(smallUserAttrs);
     this.totalLikedUsers = users.totalRows;
     this.isWhoLikedVisible = true;
   }
@@ -575,7 +566,7 @@ export default class PostMenu extends Component {
       id: this.args.post.id,
     });
 
-    this.readers = users.map(smallUserAttributes);
+    this.readers = users.map(smallUserAttrs);
     this.totalReaders = users.totalRows;
     this.isWhoReadVisible = true;
   }

app/assets/javascripts/discourse/app/components/small-user-list.gjs

@@ -1,12 +1,26 @@
 import Component from "@glimmer/component";
-import { hash } from "@ember/helper";
 import { service } from "@ember/service";
 import PluginOutlet from "discourse/components/plugin-outlet";
 import avatar from "discourse/helpers/bound-avatar-template";
 import getURL from "discourse/lib/get-url";
-import { smallUserAttrs } from "discourse/lib/user-list-attrs";
+import { applyValueTransformer } from "discourse/lib/transformer";
+import { userPath } from "discourse/lib/url";
 import { i18n } from "discourse-i18n";
 
+export function smallUserAttrs(user) {
+  const defaultAttrs = {
+    template: user.avatar_template,
+    username: user.username,
+    post_url: user.post_url,
+    url: userPath(user.username_lower),
+    unknown: user.unknown,
+  };
+
+  return applyValueTransformer("small-user-attrs", defaultAttrs, {
+    user,
+  });
+}
+
 export default class SmallUserList extends Component {
   @service currentUser;
 
@@ -30,10 +44,7 @@ export default class SmallUserList extends Component {
 
   <template>
     {{#if this.users}}
-      <PluginOutlet
+      <PluginOutlet @name="small-user-list-internal" @outletArgs={{this.args}}>
-        @name="small-user-list-internal"
-        @outletArgs={{hash data=@data}}
-      >
         <div class="clearfix small-user-list" ...attributes>
           <span
             class="small-user-list-content"

app/assets/javascripts/discourse/app/lib/user-list-attrs.js

@@ -1,16 +0,0 @@
-import { applyValueTransformer } from "discourse/lib/transformer";
-import { userPath } from "discourse/lib/url";
-
-export function smallUserAttrs(user) {
-  const defaultAttrs = {
-    template: user.avatar_template,
-    username: user.username,
-    post_url: user.post_url,
-    url: userPath(user.username_lower),
-    unknown: user.unknown,
-  };
-
-  return applyValueTransformer("small-user-attrs", defaultAttrs, {
-    user,
-  });
-}

app/assets/javascripts/discourse/app/widgets/post-menu.js

@@ -4,10 +4,10 @@ import { Promise } from "rsvp";
 import { h } from "virtual-dom";
 import AdminPostMenu from "discourse/components/admin-post-menu";
 import DeleteTopicDisallowedModal from "discourse/components/modal/delete-topic-disallowed";
+import { smallUserAttrs } from "discourse/components/small-user-list";
 import { formattedReminderTime } from "discourse/lib/bookmark";
 import discourseLater from "discourse/lib/later";
 import { recentlyCopied, showAlert } from "discourse/lib/post-action-feedback";
-import { smallUserAttrs } from "discourse/lib/user-list-attrs";
 import {
   NO_REMINDER_ICON,
   WITH_REMINDER_ICON,