bug(linux): DBusException during uninstall

[ermshiperete]

During an uninstall an DBusException "org.freedesktop.DBus.Error.NoReply: Message recipient disconnected from message bus without replying" can happen if restarting ibus takes too long and so we already try to reload the list of keyboards while it restarts.

Call stack:

DBusException: org.freedesktop.DBus.Error.NoReply: Message recipient disconnected from message bus without replying
  File "keyman_config/keyboard_layouts_widget.py", line 156, in on_uninstall_clicked
    msg = uninstall_kmp(model[treeiter][Model.PACKAGEID])
  File "keyman_config/uninstall_kmp.py", line 155, in uninstall_kmp
    get_keyman_config_service().keyboard_list_changed()
  File "keyman_config/dbus_util.py", line 81, in keyboard_list_changed
    self.__service.keyboard_list_changed()
  File "dbus/proxies.py", line 141, in __call__
    return self._connection.call_blocking(self._named_service,
  File "dbus/connection.py", line 652, in call_blocking
    reply_message = self.send_message_with_reply_and_block(

We should catch and ignore the exception in this case (and probably try to get the list of keyboards again).

Sentry Issue: KEYMAN-LINUX-7J

[sentry-io]

Sentry Issue: KEYMAN-LINUX-7J