Rewrite routes to /.auth** should forward to auth server

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**Describe the bug**
When adding a route rule to rewrite a route to an auth URL (/.auth**), request instead points to the static web server

```
{
"route": "/api/auth",
"rewrite": "/.auth/me"
}
```

Log:

> remote dev server detected.
> - url: /.auth/me
> - target: http://localhost:8080
> customUrl: false
> is4xx: false
> remote dev server detected. Proxying request
> - url: /.auth/me
> - code: 200
> GET http://localhost:8080/.auth/me (proxy)
> Connected to tcp:127.0.0.1:8080 successfully
> http://localhost:8080 validated successfully
> Connected to tcp:localhost:8080 successfully
> getting response from dev server
> GET http://localhost:4280/.auth/me - 404

**To Reproduce**
Add a route rule that redirects to an auth path.

**Expected behavior**
Requests for rewritten routes to /.auth** should be forwarded to the auth server, not static server