refactor(editor): unify directories naming (#11516)

**Directory Structure Changes**

- Renamed multiple block-related directories by removing the "block-" prefix:
  - `block-attachment` → `attachment`
  - `block-bookmark` → `bookmark`
  - `block-callout` → `callout`
  - `block-code` → `code`
  - `block-data-view` → `data-view`
  - `block-database` → `database`
  - `block-divider` → `divider`
  - `block-edgeless-text` → `edgeless-text`
  - `block-embed` → `embed`

blocksuite/affine/blocks/surface/src/element-model/base.ts

@@ -0,0 +1,4 @@
+export {
+  GfxPrimitiveElementModel as SurfaceElementModel,
+  GfxGroupLikeElementModel as SurfaceGroupLikeModel,
+} from '@blocksuite/std/gfx';

blocksuite/affine/blocks/surface/src/element-model/index.ts

@@ -0,0 +1,56 @@
+import {
+  BrushElementModel,
+  ConnectorElementModel,
+  GroupElementModel,
+  HighlighterElementModel,
+  MindmapElementModel,
+  ShapeElementModel,
+  TextElementModel,
+} from '@blocksuite/affine-model';
+
+import { SurfaceElementModel } from './base.js';
+
+export const elementsCtorMap = {
+  group: GroupElementModel,
+  connector: ConnectorElementModel,
+  shape: ShapeElementModel,
+  brush: BrushElementModel,
+  text: TextElementModel,
+  mindmap: MindmapElementModel,
+  highlighter: HighlighterElementModel,
+};
+
+export {
+  BrushElementModel,
+  ConnectorElementModel,
+  GroupElementModel,
+  HighlighterElementModel,
+  MindmapElementModel,
+  ShapeElementModel,
+  SurfaceElementModel,
+  TextElementModel,
+};
+
+export enum CanvasElementType {
+  BRUSH = 'brush',
+  CONNECTOR = 'connector',
+  GROUP = 'group',
+  MINDMAP = 'mindmap',
+  SHAPE = 'shape',
+  TEXT = 'text',
+  HIGHLIGHTER = 'highlighter',
+}
+
+export type ElementModelMap = {
+  ['shape']: ShapeElementModel;
+  ['brush']: BrushElementModel;
+  ['connector']: ConnectorElementModel;
+  ['text']: TextElementModel;
+  ['group']: GroupElementModel;
+  ['mindmap']: MindmapElementModel;
+  ['highlighter']: HighlighterElementModel;
+};
+
+export function isCanvasElementType(type: string): type is CanvasElementType {
+  return type.toLocaleUpperCase() in CanvasElementType;
+}