chore: format all frontend files (#430)

frontend/packages/data/knowledge/common/components/src/doc-preview/preview-md.tsx

@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
- 
+
 import { useEffect, useState, useRef } from 'react';
 
 import { Spin } from '@coze-arch/coze-design';

frontend/packages/data/knowledge/common/components/src/doc-preview/preview-txt.tsx

@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
- 
+
 import { useEffect, useRef, useState } from 'react';
 
 import { Spin } from '@coze-arch/coze-design';

frontend/packages/data/knowledge/common/components/src/doc-preview/use-preview-pdf/index.tsx

@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
- 
+
 /* eslint-disable @coze-arch/max-line-per-function */
 import { Document, Page, pdfjs } from 'react-pdf';
 import { useMemo, useRef, useState } from 'react';