Fix formatting of short ID on label

PostgreSQL adds a space in front of the number if not specified
otherwise, to account for a minus sign with negative numbers. As all
short IDs are positive, it can be suppressed here.

.sqlx/query-b7b928c24918aa24f80e4c74eeca04b60bf7295a6d7505ab4897e18b8d7cfbee.json

@@ -1,6 +1,6 @@
 {
   "db_name": "PostgreSQL",
-  "query": "SELECT id AS \"id?\", to_char(short_id, '000000') AS \"short_id?\"\n            FROM items\n            WHERE id = ANY ($1)",
+  "query": "SELECT id AS \"id?\", to_char(short_id, 'FM000000') AS \"short_id?\"\n            FROM items\n            WHERE id = ANY ($1)",
   "describe": {
     "columns": [
       {
@@ -24,5 +24,5 @@
       null
     ]
   },
-  "hash": "265104a03d3ce2a41b58b1fa5cac5a55622b6d4f035d0276d1644f6500491989"
+  "hash": "b7b928c24918aa24f80e4c74eeca04b60bf7295a6d7505ab4897e18b8d7cfbee"
 }

src/database/items/label.rs

@@ -12,7 +12,7 @@ impl ItemRepository {
     pub async fn label_pages(&self, ids: &[Uuid]) -> sqlx::Result<Vec<LabelPage>> {
         query_as!(
             LabelPage,
-            r#"SELECT id AS "id?", to_char(short_id, '000000') AS "short_id?"
+            r#"SELECT id AS "id?", to_char(short_id, 'FM000000') AS "short_id?"
             FROM items
             WHERE id = ANY ($1)"#,
             ids