cleanup HTTP proxy session when device disconnects

update FUNDING

update README

ui: keep term window when the term disconnects.

ui: Limit the number of window splits to 6

bump version 5.5.2

ui: add banner info

HTTP connection termination notification for http proxy

prevent accidental removal of existing device on duplicate ID conflict

bump version 5.5.1

refactor http proxy request handling and improve performance

use sync.Pool for WebSocket read buffers in http proxy

strip default ports from Host header in http proxy

set default port based on proto in http proxy

Replaced string-based keys with byte arrays for HTTP proxy in sync.Map