强行占用alt+space键

### Description of the new feature / enhancement

为什么快速打开功能要强行占用alt+space组合键呢？有很多指令都靠这个组合键来触发，为什么不开放一下呢？

### Scenario when this would be used?

影响多种程序的快捷方式

### Supporting information

_No response_

Start at the Quick Open feature's handling of the Alt+Space shortcut and trace where the global hotkey is registered. Check how Windows-wide shortcut conflicts are handled and verify the behavior with applications that already use Alt+Space. Done means other applications can use the combination without breaking Quick Open.

Written by the indexing model from the issue text.