Fix(Login IP whitelisting)

[schnogz]

Description

• Allows user to add more than two IPs to the whitelist (upto whatever 255 chars will allow)
• Fixes issue were we attempted to save an empty list string as "null" or "undefined" to backend API which resulted in error shown to user
• Removes some unneeded components
• Standards and shorten some copy

Change Type

• Bug Fix

Testing Steps

Detail the steps required for the reviewer(s) to verify and test these changes.

Code Checklist

• Code compiles successfully (verified via yarn start)
• README.md and other documentation is updated as needed

[coveralls]

Coverage increased (+0.05%) to 35.136% when pulling 2eb5281 on fix/ip-whitelist into 0d7608e on development.

[plondon]

FYI for the future, changing FormattedMessage ids will cost 💸