First attribute read as log_export in fetch_nwb

Describe the bug

A log_export option was added to the SpyglassMixin.fetch_nwb()
If a function call does not explicitly pass a value for log_export, the first vallue in attrs it passes (if any) is taken as the log_export argument, leading to errors later
- So far this only caused an issue for me when getting data from DLCV1 which passes a list of attrs in its fetch_nwb call

To Reproduce

from spyglass.position.v1 import DLCPosV1
key = {'nwb_file_name': 'Bilbo20230802_.nwb', 'epoch': 2, 'interval_list_name': 'pos 1 valid times'}
key = (DLCPosV1() & key).fetch("KEY")
(DLCPosV1() & key).fetch_nwb()

Solution Make log_export part of the kwargs and assign a default value in the function

LorenFrankLab / spyglass

First attribute read as log_export in fetch_nwb #1173