release .msix package with appcontainer enabled

[oppressor1761]

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• [X] I have searched existing issues for duplicates
• [X] I agree to follow this project's Code of Conduct

Summary

a security improvement for Windows client

Motivation

Cryptomator on Windows is distributed in .msi and .exe package which lacks app sandbox. By distributing Cryptomator using appcontainer in .msix, it can be sandboxed on Windows with security benefits. This could help mitigate 0-day exploits as attack surface reduction.

Considered Alternatives

Virtual machines

Anything else?

No response