chore: clean up events

packages/docs/content/docs/beta-features.mdx

@@ -87,12 +87,12 @@ Example usage:
 
 ```javascript
 CMS.registerEventListener({
-  name: 'prePublish',
+  name: 'postSave',
   handler: ({ author, entry }) => console.info(JSON.stringify({ author, data: entry.data })),
 });
 ```
 
-Supported events are `prePublish`, `postPublish`, `preSave` and `postSave`. The `preSave` hook can be used to modify the entry data like so:
+Supported events are `preSave` and `postSave`. The `preSave` hook can be used to modify the entry data like so:
 
 ```javascript
 CMS.registerEventListener({

packages/docs/content/docs/migration-guide-v2.mdx

@@ -270,6 +270,7 @@ Also the `clearMediaControl` and `removeMediaControl` widget control props have
   - `isHidden` renamed to `hidden`
   - `mediaPaths` is now object of id mapped to an object containing the `path` and optional `alt`
 - `useMediaInsert` hook now requires a collection to be passed in. Its callback function now receives an object containing the `path` and optional `alt` instead of a string.
+- `prePublish` and `postPublish` events have been dropped.
 
 ## Other Changes