Span inside link is not in color

### Expected behavior

Japanese/Chinese characters inside link should be in color

### Actual behavior
they are default color

### Steps to reproduce

add wcwidth and call:

```javascript
term.echo('[[!;;;;https://github.com/chunqiuyiyu]春秋一语]');
```
found while creating this demo:

https://codepen.io/jcubic/pen/gObPBdP?editors=0110

credits command