Update payload to 2.18.3

payload/src/collections/Posts.ts

@@ -3,6 +3,7 @@ import { isAdmin } from "@/access/isAdmin";
 import { isEditor } from "@/access/isEditor";
 import { isSSG } from "@/access/isSSG";
 import { isUser } from "@/access/isUser";
+import { slateEditor } from '@payloadcms/richtext-slate'
 
 const Posts: CollectionConfig = {
   slug: "posts",
@@ -68,26 +69,28 @@ const Posts: CollectionConfig = {
       required: true,
     },
     {
-      name: "content",
-      type: "richText",
-      admin: {
-        elements: ["h2", "h3", "h4", "link", "ol", "ul", "upload", "blockquote", "indent"],
-        leaves: ["bold", "italic", "underline"],
-        upload: {
-          collections: {
-            media: {
-              fields: [
-                {
-                  name: "image",
-                  type: "upload",
-                  relationTo: "media",
-                  required: true,
-                },
-              ],
+      name: 'content',
+      type: 'richText',
+      editor: slateEditor({
+        admin: {
+          elements: ["h2", "h3", "h4", "link", "ol", "ul", "upload", "blockquote", "indent"],
+          leaves: ["bold", "italic", "underline", "strikethrough"],
+          upload: {
+            collections: {
+              media: {
+                fields: [
+                  {
+                    name: "image",
+                    type: "upload",
+                    relationTo: "media",
+                    required: true,
+                  },
+                ],
+              },
             },
           },
         },
-      },
+      })
     },
     {
       name: "author",