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/fragments/doc-title/src/utils.ts

@@ -0,0 +1,11 @@
+import type { EditorHost } from '@blocksuite/std';
+
+import type { DocTitle } from './doc-title';
+
+export function getDocTitleByEditorHost(
+  editorHost: EditorHost
+): DocTitle | null {
+  const docViewport = editorHost.closest('.affine-page-viewport');
+  if (!docViewport) return null;
+  return docViewport.querySelector('doc-title');
+}