fix(): Deleted default sales channel should be prevented (#10193)

FIXES CMRC-722

**What**
- It should not be allowed to delete a default sales channel
- The admin does not allow to delete a sales channel use as the default for the store

packages/admin/dashboard/src/i18n/translations/en.json

@@ -2334,6 +2334,9 @@
       "update": "Sales channel updated successfully",
       "delete": "Sales channel deleted successfully"
     },
+    "tooltip": {
+      "cannotDeleteDefault": "Cannot delete default sales channel"
+    },
     "products": {
       "list": {
         "noRecordsMessage": "There are no products in the sales channel."