add: cascade delete on messages

src/database/messages.rs

@@ -141,7 +141,7 @@ impl DataManager {
         self.update_chat_last_message_read_by(data.chat, Vec::new())
             .await?;
 
-        // ....
+        // ...
         Ok(data)
     }
 

src/database/sql/create_messages.sql

@@ -2,7 +2,7 @@ CREATE TABLE IF NOT EXISTS t_messages (
     id BIGINT NOT NULL,
     created BIGINT NOT NULL,
     edited BIGINT NOT NULL,
-    owner BIGINT NOT NULL,
+    owner BIGINT NOT NULL REFERENCES users(id) ON DELETE CASCADE,
     chat BIGINT NOT NULL,
     content TEXT NOT NULL,
     uploads TEXT NOT NULL