There's a merged pull request on the void-packages repository

PrismLauncher: update to 9.1
https://github.com/void-linux/void-packages/pull/52765

Description:
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#### Testing the changes
- I tested the changes in this PR: **YES**




#### Local build testing
- I built this PR locally for my native architecture, (x64-GlibC)
- I built this PR locally for these architectures (if supported. mark crossbuilds):
  - x64-MuslC

Just a little patch in upstream, to fix a Windows installer bug.
I also noticed minor changes in the code, refactoring, alongside the addition of a new "savefile" for the launcher.

Everything's clear.