Removed tpl dependency from admin

refs https://github.com/TryGhost/Team/issues/2677

The dependency caused errors in Safari, probably due to incompatible JS features that need to be polyfilled. Removed it for now and replaced it with a simple method instead.

ghost/admin/app/components/posts-list/context-menu.js

@@ -4,11 +4,20 @@ import DeletePostsModal from './modals/delete-posts';
 import EditPostsAccessModal from './modals/edit-posts-access';
 import UnpublishPostsModal from './modals/unpublish-posts';
 import nql from '@tryghost/nql';
-import tpl from '@tryghost/tpl';
 import {action} from '@ember/object';
 import {inject as service} from '@ember/service';
 import {task} from 'ember-concurrency';
 
+/**
+ * @tryghost/tpl doesn't work in admin yet (Safari)
+ */
+function tpl(str, data) {
+    for (const key in data) {
+        str = str.replace(new RegExp(`{${key}}`, 'g'), data[key]);
+    }
+    return str;
+}
+
 const messages = {
     deleted: {
         single: 'Post deleted successfully',
@@ -55,7 +64,7 @@ export default class PostsContextMenu extends Component {
 
     #getToastMessage(type) {
         if (this.selectionList.isSingle) {
-            return tpl(messages[type].single);
+            return messages[type].single;
         }
         return tpl(messages[type].multiple, {count: this.selectionList.count});
     }

ghost/admin/package.json

@@ -180,7 +180,6 @@
     "*.js": "eslint"
   },
   "dependencies": {
-    "@tryghost/tpl": "0.1.24",
     "jose": "4.13.1",
     "path-browserify": "1.0.1",
     "webpack": "5.77.0"