Autoupdate Start new default dock do not refer to the original fig object in BECIPythonClient

Bug report

Summary

If the gui is cleared and all docks are deleted, then the original fig object is deleted and not created again.

Expected Behavior vs Actual Behavior

[Describe what you expected to happen and what actually happened.]

Steps to Reproduce

• demo [1/17] ❯❯ gui.clear_all()

• demo [2/17] ❯❯ gui.auto_updates.start_default_dock()

• demo [3/17] ❯❯ fig.image('eiger')
---------------------------------------------------------------------------
ValueError                                Traceback (most recent call last)
Cell In[3], line 1
----> 1 fig.image('eiger')

File ~/PSI/bec_widgets/bec_widgets/cli/client_utils.py:65, in rpc_call.<locals>.wrapper(self, *args, **kwargs)
     63 if not self.gui_is_alive():
     64     raise RuntimeError("GUI is not alive")
---> 65 return self._run_rpc(func.__name__, *args, **kwargs)

File ~/PSI/bec_widgets/bec_widgets/cli/client_utils.py:332, in RPCBase._run_rpc(self, method, wait_for_rpc_response, timeout, *args, **kwargs)
    330 # get class name
    331 if not response.accepted:
--> 332     raise ValueError(response.message["error"])
    333 msg_result = response.message.get("result")
    334 return self._create_widget_from_msg_result(msg_result)

ValueError: Object with gui_id BECFigure_1723649022.1873338 not found

Proposed Solution

Recreating the default dock should register the fig back into BECIPythonClient