Investigate use of MSIX for packaging and deployment to Windows Store

[droidmonkey]

Context

Microsoft has introduced a new packaging tool that can contain Win32 apps:
https://docs.microsoft.com/en-us/windows/msix/overview

[buchwasa]

2 years later: I took some time to package this myself with Microsoft's MSIX tool. Everything worked great up until I went to mess with the startup task. While I can add the option to add a startup task, I am not able to change the setting within KeePass, it requires some changes using MS' StartupTask. If that gets resolved (I'll look into it myself and PR it when I have time), then KeePass can be published on the MS Store. If need be, when that time comes, I can also unofficially publish it on the store.

Reference on where to start

[droidmonkey]

We would prefer to control publishing... but would love a pr to make this happen

[buchwasa]

Waiting on #5874 for this, but I have some other news. It's looking like MS is looking to allow Win32 apps in their store here at some point here soon. I wouldn't abandon this issue though, as 10X might still need it.

[buchwasa]

This can be submitted to the Windows 11 Microsoft Store as is

[hho]

I'd still love an MSIX for the Microsoft Store, if just for the silent auto updates.

[soredake]

One more reason for bringing msix: #9538

[bdbai]

Hi @buchwasa, may I ask if the code for MSIX packaging is still with you? If so, hopefully we can continue working on that.