Add deleteConfig to API

packages/frontend-core/src/api/configs.js

@@ -20,6 +20,17 @@ export const buildConfigEndpoints = API => ({
     })
   },
 
+  /**
+   * Deletes a global config 
+   * @param id the id of the config to delete
+   * @param rev the revision of the config to delete
+   */
+  deleteConfig: async ({ id, rev }) => {
+    return await API.delete({
+      url: `/api/global/configs/${id}/${rev}`
+    })
+  },
+
   /**
    * Gets the config for a certain tenant.
    * @param tenantId the tenant ID to get the config for