feat(slashing): autocli query config

[JeancarloBarrios]

Description

Closes: #XXXX

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[julienrbrt]

I'll be pushing this PR to the finish line!

[julienrbrt]

The params are wrongly decoded:

params:
  downtime_jail_duration: 600s
  min_signed_per_window: NTAwMDAwMDAwMDAwMDAwMDAw
  signed_blocks_window: "100"
  slash_fraction_double_sign: NTAwMDAwMDAwMDAwMDAwMDA=
  slash_fraction_downtime: MTAwMDAwMDAwMDAwMDAwMDA=

[julienrbrt]

Blocked by #16927 and #16985

[julienrbrt]

#16985 is valid as well for q mint inflation and other commands, and not only for slashing, so I am going to merge this. Once #16985 is implemented the params command will display better as well.

[github-actions]

@julienrbrt your pull request is missing a changelog!