Added Alt-PrtScn as alternate method for initiating screen capture

[kmeekva]

Simple fix to allow Alt-PrtScr as alternative way of initiating screen capture on windows 10.
This should provide workaround for using keyboard to capture screen in windows when other WINDOWs defaults Bind to the PrtScr Key.

[veracioux]

Closes #2167.

[borgmanJeremy]

Rather than adding specifically Alt-PRNTSCREEn I think it would be better to allow users to set the hotkey.

This can be done the same way it was done on MacOS in this PR: #2098

[kmeekva]

I don't think I understand how the example for MAC OS works.

I thought I could just define with initial values and it would allow users to set hotkey.

But my code fails when I try to open the configuration file with message saying "The configuration contains an error. Falling back to default configuration."

[borgmanJeremy]

Okay no problem, I just got my windows partition set up so I can take a look. I think this is the last pr before we beta v11

[borgmanJeremy]

Okay the reason it is crashing has nothing to do with your change, you just were the first to find it :) Here is a picture of the fix, I can merge it tomorrow or you can make the fix on your branch. I dont have my ssh keys properly set up in windows.

That said, the hotkey change doesnt seem to be working

[aprilkenopsia]

is changing the keybind still being worked on?

[dt192]

This would be great to have, seems to be the only obvious large issue with the windows version.