Update DB docs, use tables, break lines, and review the text

See merge request !367

Fixed SPLITS not accepting an str

Enhancement: Profiler integration in Autosubmit 4

See merge request !350

Start conditions + Nomenclature for higher number of tasks

See merge request !352

Stats fix

See merge request !362

fixes 949

See merge request !358

Merge branch 'Custom_directives_fix_wrapper' of https://earth.bsc.es/gitlab/es/autosubmit into Custom_directives_fix_wrapper

# Conflicts:
#	test/unit/test_job_package.py

Merge branch 'DestinE-Start-Conditions' of https://earth.bsc.es/gitlab/es/autosubmit into DestinE-Start-Conditions

Fixed as_checkpoint() in python