fix(approve): update approval status filter to include rejected orders

- Modify status filter logic to include rejected orders (status -1) in completed tab
- Change statusVal from '2' to '2,-1' when viewing completed approvals
- Ensures rejected orders are displayed alongside approved orders in the done tab

pages/approve/index.vue

@@ -138,7 +138,7 @@
              */
             getData() {
                 var page = this.currentTab === 0 ? this.pendingPage : this.donePage;
-                var statusVal = this.currentTab === 0 ? '0,1' : '2';
+                var statusVal = this.currentTab === 0 ? '0,1' : '2,-1';
                 var params = {
                     approval_status: statusVal,
                     page,