fix: 修复终端内鼠标显示text光标的问题

src/components/TerminalViewport.tsx

@@ -183,6 +183,7 @@ const TerminalViewport = React.forwardRef<TerminalController, TerminalViewportPr
         textarea.style.width = '0px';
         textarea.style.height = '0px';
         textarea.style.pointerEvents = 'none';
+        textarea.style.cursor = 'default';
         textarea.style.zIndex = '-1';
       });
     }, [useHiddenInputOverlay]);