Clean up help message for configs

[mhliu0001]

Previously there were inconsistent help for the same configuration in different files. And there were also two configs (pe_pulse_ys and pe_pulse_ts) that had a placeholder description. This PR fixes these descriptions to make them consistent with each other.

Also I will let experts comment on whether my interpretation for pe_pulse_ys and pe_pulse_ts is correct.

[mhliu0001]

Checking this manually is tiresome, so it might be nice to integrate this into the automatic tests in the future. I have a script (by ChatGPT) for this if anyone is interested.

[coveralls]

Pull Request Test Coverage Report for Build 8342687699

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 66.592%

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Totals
Change from base Build 8339955236:	0.0%
Covered Lines:	1782
Relevant Lines:	2676

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💛 - Coveralls

[mhliu0001]

Also in s2_photon_propagation.py, many help messages are just the same as the name of the config. I need some help here what these configs are.

[HenningSE]

Hi @mhliu0001, thanks for bringing this up. For some of the variables I was not really sure how to best describe them in help. Many variable names were taken 1:1 from WFSim and they are not very easy to decipher. We could even think about replacing variable names like e.g. pe_pulse_ts with something easier to understand while collecting the informations for the help statements.

[ramirezdiego]

Merged into #163.