[Feature] Add local websocker support

[johnsonm]

Wavelog maintainer DJ7NT pointed out that local websocker support was recently added to Wavelog. This would give lower--latency updates in the UI.

wavelog/wavelog#2539 (comment)

For reference, some relevant Wavelog commits are aec2d7363dcaeceb94ef2a78ae2a5cf3153134ff and 9286bf08a0e4e64ea338671481d66d3189b07448

My preferred websocket implementation would be https://github.com/coder/websocket