[Feature] 允许用户将默认快捷键置空

### Problem / pain point

例如ctrl+K，我希望能取消面板中的默认快捷键，将其置空。

### Proposed solution

允许用户将其置空

### Alternatives considered

也可通过其他方式允许用户向终端中运行的程序直接传入相关快捷键而不被程序本身拦截

### Related area

UI / UX, Settings / backup / sync

### How important is this to you?

Nice to have

### Before submitting

- [x] I searched existing issues for similar requests