Mod should be CTRL by default on windows

[riexn]

• I have checked that a similar feature request does not already exist.

Is your feature request related to a problem? Please describe.
As of version 1.5.1, on windows, the shortcuts switched from ctrl+[key] to alt+[key] due to the ability to change the mod key.
It makes sense for Mac since cmd is located where alt is, but in windows the shortcuts are usually ctrl.

This can be quickly solved with

scrcpy --shortcut-mod=lctrl

but, I believe having it the default for windows would be good so it wouldn't confuse new users.

Describe the solution you'd like
By default, mod for windows would be ctrl.

Describe alternatives you've considered
changing the mod key in scrcpy arguments

scrcpy --shortcut-mod=lctrl

[rom1v]

The whole point of this change is to forward Ctrl to the device to use it for device shortcuts. For example Ctrl+a to select all text, Ctrl+t to open a new browser tab, etc.

So scrcpy itself must use another key for its own shortcuts.

See #1598 and highlights.

[riexn]

Makes sense in this case then!