refactor: selectable exchange rate service providers

erpnext/accounts/doctype/accounts_settings/accounts_settings.json

@@ -46,6 +46,7 @@
   "currency_exchange_section",
   "allow_stale",
   "stale_days",
+  "service_provider",
   "report_settings_sb",
   "use_custom_cash_flow"
  ],
@@ -300,6 +301,12 @@
    "fieldname": "show_taxes_as_table_in_print",
    "fieldtype": "Check",
    "label": "Show Taxes as Table in Print"
+  },
+  {
+   "fieldname": "service_provider",
+   "fieldtype": "Select",
+   "label": "Service Provider",
+   "options": "frankfurter.app\nexchangerate.host"
   }
  ],
  "icon": "icon-cog",
@@ -307,7 +314,7 @@
  "index_web_pages_for_search": 1,
  "issingle": 1,
  "links": [],
- "modified": "2023-06-13 18:47:46.430291",
+ "modified": "2023-10-06 15:05:51.999404",
  "modified_by": "Administrator",
  "module": "Accounts",
  "name": "Accounts Settings",