Key code for Windows

[dancalligaro]

First, thank you for writing this extension!

While trying it on windows, I noticed that clicking the extension icon was not muting/unmuting, but it does reflect correctly the mute state when muting/unmuting via the meet mute button.

meet-mute/ext/js/meetmute.js

Line 118 in 405cef6

"metaKey": true,

"ctrlKey": true, // <-- for windows
//"metaKey": true,

The key combination for Windows is Ctrl+D. It seems like this can be addresed by updating the key combination and detecting if the OS is Windows. (I would guess many of the 'not working' comments may be from Windows users?).

Cheers,
Daniel