Add very basic crawl job

Loops through feeds and adds items from each feed.

src/handlers/feeds.rs

@@ -5,5 +5,5 @@ use crate::error::Error;
 use crate::models::feed::{get_feeds, Feed};
 
 pub async fn get(State(pool): State<PgPool>) -> Result<Json<Vec<Feed>>, Error> {
-    Ok(Json(get_feeds(pool).await?))
+    Ok(Json(get_feeds(&pool).await?))
 }