Reproduce Slurm logic to represent job states

[rezib]

Currently, the logic to represent job states is pretty basic and naive in Slurm-web. It should mimic Slurm logic implement in job_state_string_complete() for full support of all job states, eg. https://github.com/SchedMD/slurm/blob/844d20a7a859517fb2d5f05f03c723bbe5d5f058/src/common/slurm_protocol_defs.c#L2768C14-L2768C39