* fix(settings): unify terminal theme pickers
Reuse the Appearance searchable selector and palette swatches while preserving imported-theme actions and independent terminal theme slots.
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
* fix(settings): don't replay a handled theme import after remount
Settings search unmounts the theme row, so the picker remounted with
handledImportSignal=0 and reopened at Imported without a new import.
---------
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>