Support socks5/http proxy for desktop client

[BLumia]

Describe the problem

In some case user might need a proxy to access a certain homeserver. It could be useful if it could have built-in socks5 and/or http proxy support for Cinny desktop client.

Describe the solution you'd like

Add a proxy setting to the desktop client, and ensure the proxy setting can be accessed before login any account.

Alternatives considered

If in-app proxy setting is not possible, add a commandline argument to make it able to use a proxy is still okay.

Additional context

I don't know so much about front-end development and Tauri, so not sure if it's possible.

This issue might be related: https://github.com/tauri-apps/wry/issues/588

[BLumia]

Oh sorry I just realized I should probably open this issue in cinnyapp/cinny-desktop instead of cinnyapp/cinny. If you cannot transfer this issue to that repo, please feel free to let me know if I should close this one and create a new one in that repo. Thanks!