Handle WebSocket connection resets

Some WebSockets libraries don't automatically handle connection resets, e.g. https://github.com/snapview/tokio-tungstenite/issues/101. We should add tests (e.g. the reproducing example in the linked issue) to see what happens if a WebSocket connection opened by a Surf Disco client is reset, and add logic to automatically reconnect if necessary.

Start by reviewing the Surf Disco WebSocket client entry points and the reproducing example in the linked tokio-tungstenite issue. Add tests covering a reset connection and verify that the client automatically reconnects when necessary.

Written by the indexing model from the issue text.