feat: e on the status pane edits the config, as in lazygit

Instead of a global E: e on the status pane opens the config, shown
in its footer as "e edit config".

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>

internal/ui/app/app.go

@@ -965,8 +965,6 @@ func (m *Model) handleKey(msg tea.KeyPressMsg) (cmd tea.Cmd, quit bool) {
 		return m.refresh(), false
 	case key.Matches(msg, k.Update):
 		return m.update(), false
-	case key.Matches(msg, k.EditConfig):
-		return m.editConfig(), false
 	}
 	return nil, false
 }