fix(audio): misc

src/pages/tools/audio/merge-audio/index.tsx

@@ -106,7 +106,7 @@ export default function MergeAudio({
       getGroups={getGroups}
       setInput={setInput}
       compute={compute}
-      toolInfo={{ title: `What is a ${title}?`, description: longDescription }}
+      toolInfo={{ title: `What is ${title}?`, description: longDescription }}
     />
   );
 }

src/pages/tools/audio/merge-audio/meta.ts

@@ -4,7 +4,7 @@ import { lazy } from 'react';
 export const tool = defineTool('audio', {
   name: 'Merge Audio',
   path: 'merge-audio',
-  icon: 'mdi:music-note-multiple',
+  icon: 'fluent:merge-20-regular',
   description:
     'Combine multiple audio files into a single audio file by concatenating them in sequence.',
   shortDescription: 'Merge multiple audio files into one (MP3, AAC, WAV).',

src/pages/tools/audio/merge-audio/service.ts

@@ -36,7 +36,7 @@ export async function mergeAudioFiles(
   await ffmpeg.writeFile(fileListName, fileListContent);
 
   // Build FFmpeg arguments for merging
-  let args: string[] = ['-f', 'concat', '-safe', '0', '-i', fileListName];
+  const args: string[] = ['-f', 'concat', '-safe', '0', '-i', fileListName];
 
   // Add format-specific arguments
   if (outputFormat === 'mp3') {