Update SQL query to filter dates within the last 14 days and add a notification for closed registration.

terminwahl_back/src/db/read.rs

@@ -99,7 +99,7 @@ pub async fn get_dates(db: &Pool) -> Result<Dates, sqlx::Error> {
         Date,
         r#"
         SELECT *
-        FROM `date`;"#,
+        FROM `date` WHERE end_time > datetime('now', '-14 days');"#,
     )
     .fetch_all(db)
     .await