Confusing usage of current_queue_info

[wakonig]

Name overlaps with "current_scan_info" in the scan_worker (https://github.com/bec-project/bec/blob/main/bec_server/bec_server/scan_server/scan_worker.py#L192). In the scan_worker, the attribute is used a dict used to create the ScanStatusMessage and store information about the upcoming acquisition. In this class, it is the QueuInfoEntry.As this is on the ScanStorage, I think this can get confusing and I would vote for renaming it to for example "current_queue_info".

Originally posted by @cappel89 in #704 (comment)