Current `dx` config directory path in linux

**Problem**

Current config path in linux is `/home/[USER]/.local/share/.dx` and this not good practice to use hidden directories inside `/home/mohamed/.local/share/`

**Expected behavior**

The good practice paths can be:
- `/home/[USER]/.local/share/dx`
- `/home/[USER]/.dx`
- `/home/[USER]/.config/dx`

**Environment:**

- Dioxus version: v0.7.1
- Rust version: 1.91.1
- OS info: Arch linux

No source file or test is named. Search the repository for the Linux `.local/share/.dx` path and inspect the existing config-directory handling, then determine which listed convention the project intends to support. Done means the selected path is used consistently on Linux and the relevant checks pass.

Written by the indexing model from the issue text.