refactor(relay): extract shared relay policy presets across endpoints

pages/api/endpoint/getbasicsearchpaged_api.js

@@ -46,6 +46,7 @@ import _ from "lodash";
 import { azureHeadersPagedCustom } from "../../../actions/core/headers";
 import { respondError } from "../middleware/apiResponse";
 import { relayGet } from "../middleware/relayForwarding";
+import { RELAY_POLICY_SEARCH_PAGED } from "../middleware/relayPolicyPresets";
 
 export default async function ApiProxy(req, res) {
     let searchString = req.query.searchString;
@@ -111,13 +112,7 @@ export default async function ApiProxy(req, res) {
             ? "&$skiptoken=" + '<cookie pagenumber="' + pageNumber + '" />'
             : "");
 
-    const relayPolicy = {
-        method: "GET",
-        timeoutMs: 9000,
-        maxRetries: 2,
-        retryBaseDelayMs: 150,
-        retryMaxDelayMs: 1000
-    };
+    const relayPolicy = RELAY_POLICY_SEARCH_PAGED;
 
     return relayGet({
         queryUrl,