Add interface for fetching links from server

packages/ui/src/api/scraper.js

@@ -0,0 +1,8 @@
+import client from './client'
+
+const fetchAllLinks = (url, relativeLinksMethod) =>
+    client.get(`/fetch-links?url=${encodeURIComponent(url)}&relativeLinksMethod=${relativeLinksMethod}`)
+
+export default {
+    fetchAllLinks
+}