cleanup, added some boilerplate readmes for backend projects

backend/public/src/state.rs

@@ -1,6 +1,5 @@
 use fred::interfaces::KeysInterface;
 use fred::{clients::Pool, prelude::*};
-use serde_json::Value;
 use sqlx::PgPool;
 
 pub type AppState = std::sync::Arc<tokio::sync::Mutex<AppInternalState>>;