Uninstalling Juliaup doesn't remove .julia dir or at least .julia/juliaup

Regarding [this](https://discourse.julialang.org/t/error-occured-after-the-first-precompilation-on-some-packages-after-upadting-to-julia-1-8-4/92138?u=shayan) problem, I decided to try to uninstall and reinstall Juliaup. I'm running Windows 10. I uninstalled it using
🪟 Win > search "Juliaup" > Right click > 🗑 Uninstall.
Then I checked the `C:\Users\Shayan\.julia` and `C:\Users\Shayan\.julia\juliaup` directories. Unfortunately (or maybe fortunately), both exist (as before *I guess*). So I doubt if it was a clean uninstallation.

I should mention that I installed Juliaup from the Microsoft Store and I hadn't any other Julia installation (like the stand-alone binary from JuliaLang.org/download) on my machine.

Start by reproducing the Microsoft Store uninstall on Windows 10 and inspect what remains under C:\Users\Shayan\.julia and its juliaup subdirectory. Clarify whether uninstall should remove only Juliaup data or the whole .julia directory, then define completion around the intended cleanup behavior.

Written by the indexing model from the issue text.