docs(hook): update useWaveform related documents

Author: codeacme17

docs/en/hook/useWaveform.mdx

@@ -30,7 +30,7 @@ This Hook allows you to fetch waveform data of an audio file.
 
 - **channel**: `1 | 2`
 
-  The number of audio channels in the audio file, defaults to `2`.
+  The number of audio channels in the audio file, defaults to `2`. ·
 
 - **samples**: `number`
 
@@ -44,6 +44,10 @@ This Hook allows you to fetch waveform data of an audio file.
 
   The waveform data. Returns `number[]` when `channel` is `1` and `number[][]` when `channel` is `2`.
 
+- **audioDuration**: `React.MutableRefObject<number>`
+
+  The duration of the audio file is in seconds and needs to be obtained using `.current`
+
 - **error**: `boolean`
 
   Indicates whether an error occurred during waveform data generation.

docs/zh/hook/useWaveform.mdx

@@ -44,6 +44,10 @@ import { Github } from 'lucide-react'
 
   波形数据，当入参 `channel` 为 `1` 时返回 `number[]`，为 `2` 时返回 `number[][]`
 
+- **audioDuration**: `React.MutableRefObject<number>`
+
+  音频文件的时长单位为秒，需要使用 `.current` 获取
+
 - **error**: `boolean`
 
   在生成 Waveform 数据过程中是否发生错误

packages/hooks/useWaveform.ts

@@ -22,6 +22,7 @@ const SAMPLES = 512 * 2
  *
  * @returns {object} An object containing the waveform data and any error information:
  * - data: An array of numbers (for mono) or an array of arrays of numbers (for stereo), representing the simplified waveform data.
+ * - audioDuration: A ref object containing the duration of the audio in seconds.
  * - error: A boolean indicating if an error has occurred during processing.
  * - errorMessage: A string containing the error message if an error has occurred.
  *