feat: editor UI refresh and enhancements (#1968)

* feat: new image menu
* switch to resizable side handles
* use pixels

* refactor excalidraw and drawio menu

* support image resize undo

* video resize

* callout menu refresh

* refresh table menus

* fix color scheme

* fix: patch @tiptap/core ResizableNodeView to prevent resize sticking after mouseup

* feat: columns

* notes callout

* focus on first column

* capture tab key in column

* fix print

* hide columns menu when some nodes are focused

* fix print

* fix columns

* selective placeholder

* fix blockquote

* quote

* fix callout in columns

apps/server/src/collaboration/collaboration.util.ts

@@ -35,6 +35,8 @@ import {
   UniqueID,
   addUniqueIdsToDoc,
   htmlToMarkdown,
+  Columns,
+  Column,
 } from '@docmost/editor-ext';
 import { generateText, getSchema, JSONContent } from '@tiptap/core';
 import { generateHTML, generateJSON } from '../common/helpers/prosemirror/html';
@@ -91,6 +93,8 @@ export const tiptapExtensions = [
   Embed,
   Mention,
   Subpages,
+  Columns,
+  Column,
 ] as any;
 
 export function jsonToHtml(tiptapJson: any) {