refactor(web): utilize REACT_APP_BACKEND_URL for GQL and REST API URLs

packages/web/src/graphql/client.js

@@ -1,7 +1,9 @@
 import { ApolloClient } from '@apollo/client';
+
 import cache from './cache';
 import createLink from './link';
 import appConfig from 'config/app';
+
 const client = new ApolloClient({
   cache,
   link: createLink({ uri: appConfig.graphqlUrl }),
@@ -11,10 +13,19 @@ const client = new ApolloClient({
     },
   },
 });
+
 export function mutateAndGetClient(options) {
   const { onError, token } = options;
-  const link = createLink({ uri: appConfig.graphqlUrl, token, onError });
+
+  const link = createLink({
+    uri: appConfig.graphqlUrl,
+    token,
+    onError,
+  });
+
   client.setLink(link);
+
   return client;
 }
+
 export default client;