Organize modules

Signed-off-by: Nikolaos Karaolidis <nick@karaolidis.com>

src/config.rs

@@ -1,4 +1,4 @@
-use crate::types::Source;
+use crate::types::alpaca::Source;
 use governor::{DefaultDirectRateLimiter, Quota, RateLimiter};
 use reqwest::{header::HeaderMap, Client};
 use std::{env, num::NonZeroU32, sync::Arc};