Paginate lists for newsletter setup

[smoucka]

Description

V3 lists api only returns 10 lists per page. In order to fully populate the Newsletter configuration dropdown menu we need to paginate to fetch all lists for an account.

Manual Testing Steps

1. local setup, tested with an account with 155 lists and with an account with 4 lists. 155 had a few seconds of latency due to the synchronous requests

Pre-Submission Checklist:

• You've updated the CHANGELOG following the steps here
• Internal Only - If this is a release, please confirm the following:
  • The links in the changelog have been updated to point towards the new versions
  • The version has been incremented in the following places: module.xml and composer.json

NOTE: Please use the Changelogger cli tool to manage versioned file upgrades.

[jordanleslie]

Are we removing this from the .gitignore?

[smoucka]

Yea, I'm not sure why that was excluded. The .idea directory is phpstorm related. I ended up with a codeStyles config file that was committed so making sure we don't get those in here by accident.