Add jailing info to main page tally

[LexaMichaelides]

some way to show which validators have been jailed that period (since we have bonus points for not getting jailed).

I don't think we have live monitoring for this so we would need to build something.

[tripledoublev]

I looked at ping-pub's explorer to see how we could obtain jailing info.
L6 in src/types/staking.ts includes a jailed key which suggests the explorer can expose jailing information. However, the /validators endpoint does not currently include this data.

Alternatively, I found this python script by Dante that seems to be doing exactly what we need. The script saves jailed validator records within a specified time window.