lnpeer: some rework of error/warning message handling

- rm the `_get_channel_ids` abstraction as each of its usages needs subtle differences.
  Some code duplication is preferable in this case.
- raise exceptions in `wait_for_message`, so that callers such as the GUI can show user-feedback
- on_error/on_warning were dropping messages with temp_chan_ids if they were not stored in
  `temp_id_to_id` - which was only done once the mapping was known (so the normal chan_id was known).
  To fix this, we now store temp_chan_ids into `temp_id_to_id` early.
- `schedule_force_closing` only works if the chan_id is already in `channels`

related:
https://github.com/spesmilo/electrum/pull/7645 (and related commits)

-----

example before commit:
```
D/P | lnpeer.Peer.[LNWallet, 03933884aa-3b53e4ab] | Sending OPEN_CHANNEL
D/P | lnpeer.Peer.[LNWallet, 03933884aa-3b53e4ab] | Received ERROR
I/P | lnpeer.Peer.[LNWallet, 03933884aa-3b53e4ab] | remote peer sent error [DO NOT TRUST THIS MESSAGE]: invalid funding_satoshis=10000 sat (min=400000 sat max=1500000000 sat)

E | gui.qt.main_window.[test_segwit_2] | Could not open channel
Traceback (most recent call last):
  File "...\electrum\electrum\util.py", line 1160, in wrapper
    return await func(*args, **kwargs)
  File "...\electrum\electrum\lnpeer.py", line 661, in wrapper
    return await func(self, *args, **kwargs)
  File "...\electrum\electrum\lnpeer.py", line 742, in channel_establishment_flow
    payload = await self.wait_for_message('accept_channel', temp_channel_id)  #
  File "...\electrum\electrum\lnpeer.py", line 315, in wait_for_message
    name, payload = await asyncio.wait_for(q.get(), LN_P2P_NETWORK_TIMEOUT)
  File "...\Python39\lib\asyncio\tasks.py", line 468, in wait_for
    await waiter
asyncio.exceptions.CancelledError

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "...\Python39\lib\asyncio\tasks.py", line 492, in wait_for
    fut.result()
asyncio.exceptions.CancelledError

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "...\electrum\electrum\gui\qt\util.py", line 914, in run
    result = task.task()
  File "...\electrum\electrum\gui\qt\main_window.py", line 1875, in task
    return self.wallet.lnworker.open_channel(
  File "...\electrum\electrum\lnworker.py", line 1075, in open_channel
    chan, funding_tx = fut.result()
  File "...\Python39\lib\concurrent\futures\_base.py", line 445, in result
    return self.__get_result()
  File "...\Python39\lib\concurrent\futures\_base.py", line 390, in __get_result
    raise self._exception
  File "...\electrum\electrum\util.py", line 1160, in wrapper
    return await func(*args, **kwargs)
  File "...\electrum\electrum\lnworker.py", line 1006, in _open_channel_coroutine
    chan, funding_tx = await asyncio.wait_for(coro, LN_P2P_NETWORK_TIMEOUT)
  File "...\Python39\lib\asyncio\tasks.py", line 494, in wait_for
    raise exceptions.TimeoutError() from exc
asyncio.exceptions.TimeoutError
```

example after commit:
```
D/P | lnpeer.Peer.[LNWallet, 03933884aa-ff3a866f] | Sending OPEN_CHANNEL
D/P | lnpeer.Peer.[LNWallet, 03933884aa-ff3a866f] | Received ERROR
I/P | lnpeer.Peer.[LNWallet, 03933884aa-ff3a866f] | remote peer sent error [DO NOT TRUST THIS MESSAGE]: invalid funding_satoshis=10000 sat (min=400000 sat max=1500000000 sat). chan_id=124ca21fa6aa2993430ad71f465f0d44731ef87f7478e4b31327e4459b5a3988
E | lnworker.LNWallet.[test_segwit_2] | Exception in _open_channel_coroutine: GracefulDisconnect('remote peer sent error [DO NOT TRUST THIS MESSAGE]: invalid funding_satoshis=10000 sat (min=400000 sat max=1500000000 sat)')
Traceback (most recent call last):
  File "...\electrum\electrum\util.py", line 1160, in wrapper
    return await func(*args, **kwargs)
  File "...\electrum\electrum\lnworker.py", line 1006, in _open_channel_coroutine
    chan, funding_tx = await asyncio.wait_for(coro, LN_P2P_NETWORK_TIMEOUT)
  File "...\Python39\lib\asyncio\tasks.py", line 481, in wait_for
    return fut.result()
  File "...\electrum\electrum\lnpeer.py", line 673, in wrapper
    return await func(self, *args, **kwargs)
  File "...\electrum\electrum\lnpeer.py", line 755, in channel_establishment_flow
    payload = await self.wait_for_message('accept_channel', temp_channel_id)
  File "...\electrum\electrum\lnpeer.py", line 326, in wait_for_message
    raise GracefulDisconnect(
electrum.interface.GracefulDisconnect: remote peer sent error [DO NOT TRUST THIS MESSAGE]: invalid funding_satoshis=10000 sat (min=400000 sat max=1500000000 sat)
I/P | lnpeer.Peer.[LNWallet, 03933884aa-ff3a866f] | Disconnecting: GracefulDisconnect()
```

electrum/gui/qt/main_window.py

@@ -1880,6 +1880,7 @@ class ElectrumWindow(QMainWindow, MessageBoxMixin, Logger):
                 password=password)
         def on_failure(exc_info):
             type_, e, traceback = exc_info
+            #self.logger.error("Could not open channel", exc_info=exc_info)
             self.show_error(_('Could not open channel: {}').format(repr(e)))
         WaitingDialog(self, _('Opening channel...'), task, self.on_open_channel_success, on_failure)