Add maud for frontend and move api to sub module

src/handlers/api/entries.rs

@@ -0,0 +1,9 @@
+use axum::{extract::State, Json};
+use sqlx::PgPool;
+
+use crate::error::Error;
+use crate::models::entry::{get_entries, Entry};
+
+pub async fn get(State(pool): State<PgPool>) -> Result<Json<Vec<Entry>>, Error> {
+    Ok(Json(get_entries(&pool).await?))
+}