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/code/src/code-toolbar/utils.ts

@@ -0,0 +1,16 @@
+import type { CodeBlockModel } from '@blocksuite/affine-model';
+
+export const duplicateCodeBlock = (model: CodeBlockModel) => {
+  const keys = model.keys as (keyof (typeof model)['props'])[];
+  const values = keys.map(key => model.props[key]);
+  const blockProps = Object.fromEntries(keys.map((key, i) => [key, values[i]]));
+  const { text: _text, ...duplicateProps } = blockProps;
+
+  const newProps = {
+    flavour: model.flavour,
+    text: model.props.text.clone(),
+    ...duplicateProps,
+  };
+
+  return model.doc.addSiblingBlocks(model, [newProps])[0];
+};