gui: keep remote hosts in pane titles

A user@host: prefix is dropped only for the local machine, so an SSH session still says where it runs; space-less \u@\h:\w prompts are handled too.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
c6d456161fLucenx9 committed on 10/10/2026, 8:07:41 PMparente2b06c9

Checks

All checks passed
4 files changedLine totals unavailable