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/embed/src/embed-html-block/embed-html-spec.ts

@@ -0,0 +1,17 @@
+import { EmbedHtmlBlockSchema } from '@blocksuite/affine-model';
+import { BlockViewExtension } from '@blocksuite/std';
+import type { ExtensionType } from '@blocksuite/store';
+import { literal } from 'lit/static-html.js';
+
+import { createBuiltinToolbarConfigExtension } from './configs/toolbar';
+
+const flavour = EmbedHtmlBlockSchema.model.flavour;
+
+export const EmbedHtmlBlockSpec: ExtensionType[] = [
+  BlockViewExtension(flavour, model => {
+    return model.parent?.flavour === 'affine:surface'
+      ? literal`affine-embed-edgeless-html-block`
+      : literal`affine-embed-html-block`;
+  }),
+  createBuiltinToolbarConfigExtension(flavour),
+].flat();