Complete Chinese comment cleanup in File Manager components

- FileManagerModern.tsx: Translate all Chinese comments to English, replace hardcoded text with i18n
- TerminalWindow.tsx: Complete translation and add i18n support
- DiffWindow.tsx: Complete translation and add i18n support
- FileManagerOperations.tsx: Complete translation
- Fix missed comment in FileManagerGrid.tsx

All File Manager components now have clean English comments and proper internationalization.
Follow Linus principles: simple, direct, no unnecessary complexity.

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

src/ui/Desktop/Apps/File Manager/FileManagerOperations.tsx

@@ -80,12 +80,12 @@ export function FileManagerOperations({
     );
 
     try {
-      // 读取文件内容 - 支持文本和二进制文件
+      // Read file content - support text and binary files
       const content = await new Promise<string>((resolve, reject) => {
         const reader = new FileReader();
         reader.onerror = () => reject(reader.error);
 
-        // 检查文件类型，决定读取方式
+        // Check file type to determine reading method
         const isTextFile =
           uploadFile.type.startsWith("text/") ||
           uploadFile.type === "application/json" ||