[Fixes #10024] Wrong default style when creating layer

[etj]

References: #10024

Solves the problem of bad styles assigned to layer.

• Main fix is by setting proper lock ids in celery tasks.
• Added lot of debug logging, also useful for post-mortem investigations
• Split some nested commands and improved robustness

Checklist

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[etj]

@afabiani can you also pls check for the duplication of the deletion of automatically created styles in GeoServer
here
https://github.com/geosolutions-it/geonode/blob/d4ed55b890a4ea4b990cbeae5e2b48b9a5f544bb/geonode/geoserver/helpers.py#L1190-L1192
and here
https://github.com/geosolutions-it/geonode/blob/d4ed55b890a4ea4b990cbeae5e2b48b9a5f544bb/geonode/geoserver/helpers.py#L1216

[giohappy]

@afabiani it would also be great if you could add some comments to the steps, to help understanding what we're doing in each of them. It's very hard to follow the logic of style, default styles, etc. management

[giohappy]

From my side all looks good @etj. I was able to reproduce the issue before the fix. Now it never happens.