some hotkeys are not captured in macOS

**Describe the issue**

various apps on macOS use hotkeys (Alfred, Dash, iTerm, etc.). some hotkeys are captured by UTM while some aren't. while it's definitely because it depends how those apps implement their hotkeys, UTM should be able to catch almost all of them by setting an event tap at the head of the hid location (see https://developer.apple.com/documentation/coregraphics/cgevent/1454426-tapcreate#).

**Configuration**
* UTM Version: 4.4.5 (94) (Mac App Store one)
* macOS Version: 14.4 (23E214)
* Mac Chip (Intel, M1, ...): M2 Pro; M3

to test: Alfred is captured, iTerm is not, Dash is not. (but the hotkeys are capturable by other tools like RealVNC.)