only show notifications from last 2 weeks

src/model/notification.rs

@@ -64,7 +64,7 @@ WHERE
   user_id = ? 
   AND (
     read_at IS NULL 
-    OR read_at >= datetime('now', '-30 days')
+    OR read_at >= datetime('now', '-14 days')
   ) 
 ORDER BY read_at DESC, created_at DESC;
             ",