Crashed when HTTP or VMess proxies selected with `UDP Supported` ticked

[bdbai]

Steps to reproduce

In YtFlowApp:

1. Create a proxy in Assets with HTTP or VMess protocol
2. Enable UDP Supported
3. Connect to a profile with dyn-outbound
4. Select the new proxy

Actual Behavior

Crashed.

Info

YtFlowCore/ytflow/src/config/loader/proxy.rs

Line 162 in 8309837

.map(|name| (name, plugin_set.datagram_outbounds.remove(name).unwrap()))

The unwrap() throws because the UDP ap does not exist while the app util thinks otherwise.