Renamed DatabaseConnection into Pool

src/markups.rs

@@ -29,7 +29,7 @@ pub fn menu_markup_sync(
 pub async fn menu_markup(
     command: impl Into<String> + Send,
     user_id: u64,
-    db: &DatabaseConnection,
+    db: &Pool,
 ) -> crate::Result<InlineKeyboardMarkup> {
     let command: String = command.into();
     let names: Vec<String> = Account::get_names(user_id, db).try_collect().await?;