put hit register into transaction

src/main.rs

@@ -73,10 +73,15 @@ async fn register_hit(
     let key = format!("{now}{host}{slug}{salt}").into_bytes();
     let key = hex::encode(shasum(&key));
 
-    sqlx::query!("insert into hits (page, hit_key) values (?, ?)", slug, key,)
-        .execute(&db)
-        .await
-        .unwrap_or_default();
+    let tx = db.begin().await;
+
+    if let Ok(mut tx) = tx {
+        sqlx::query!("insert into hits (page, hit_key) values (?, ?)", slug, key,)
+            .execute(&mut *tx)
+            .await
+            .unwrap_or_default();
+        tx.commit().await.unwrap_or_default();
+    }
 
     "".to_string()
 }