C:// and file:// paths are rejected by the webview

**Problem**

If you use an absolute path on dioxus desktop on windows, it will be blocked by the webview and the asset will not resolve.

**Steps To Reproduce**

Steps to reproduce the behavior:

- Find an absolute path to an image on windows
- Use an image element: `img { src: "yourpath" } (where yourpath is on a different drive on windows)
- Run the app

**Expected behavior**

Dioxus should either provide a different way to link to absolute paths on windows or fix absolute paths

**Environment:**
- Dioxus version: `master`
- Rust version: `nightly`
- OS info: Windows
- App platform: `desktop`

**Questionnaire**

- [ ] I'm interested in fixing this myself but don't know where to start
- [ ] I would like to fix and I have a solution
- [ ] I don't have time to fix this right now, but maybe later