Change default location of WebView2 folder on Windows

[stefnotch]

Problem

Dioxus desktop currently creates a <application name>.exe.WebView2 upon startup. (e.g. https://github.com/DioxusLabs/dioxus/issues/966 )

However, it creates that folder right next to the .exe file, which is unusual. This becomes worse when one places it in a usually somewhat restricted folder, like a C:\Program Files folder.

When working in a multi-user setup (rare, but it happens in companies or schools), then this becomes even more important. Then, it's important to separate executables from user data. One doesn't want to accidentally leak the private data of one user to another user on the same PC.

Steps To Reproduce

Steps to reproduce the behavior:

• Compile a Dioxus application for a Windows desktop
• Start it

Expected behavior

I would have expected Dioxus desktop to automatically pick an appropriate folder, either AppData/Roaming or AppData/Local.

[stefnotch]

(Damn, that's arguably an upstream issue. Feel free to open issues in upstream libraries, because I really do believe that this could be problematic. For example, Tauri really enjoys this whole security aspect. Kinda sucks if they ever were to accidentally leak info from one user to another through this vector.)