Data cleaning and display issues

[olizilla]

• codebook: "Type of settlement system" is listed as nominal but is catagorical see: https://dpimap.org/codebook/#pay-type-of-settlement-system
• id: remove trailing newline in "Technical support organizations identified" variable
• what to do about newlines more generally? we don't display them when we render the data e.g. "IDEMIA IdentiTek" for technical support org in albania. It is intended to be two support orgs, but is displayed with a comma or a newline: https://dpimap.org/albania/