feat: consolidate config files to use CONFIG_DATADIR (fixes #3302)#3575

Noaman-Akhtar wants to merge 2 commits intochaoss:mainchaoss/augur:mainfrom

Noaman-Akhtar:feature/consolidate-config-pathsNoaman-Akhtar/augur:feature/consolidate-config-pathsCopy head branch name to clipboard