switching from default export to named export

src/constants.js

@@ -1,6 +1,6 @@
 // NOTE: this list must be up-to-date with browsers listed in
 // test/acceptance/useragentstrings.yml
-export default {
+export const BROWSER_ALIASES_MAP = {
   'Amazon Silk': 'amazon_silk',
   'Android Browser': 'android',
   Bada: 'bada',

src/utils.js

@@ -1,4 +1,4 @@
-import BROWSER_ALIASES_MAP from './constants.js';
+import {BROWSER_ALIASES_MAP} from './constants.js';
 
 export default class Utils {
   /**

test/unit/constants.js

@@ -1,5 +1,5 @@
 import test from 'ava';
-import BROWSER_ALIASES_MAP from '../../src/constants';
+import {BROWSER_ALIASES_MAP} from '../../src/constants';
 
 test('check duplicate aliases', (t) => {
   const aliasesList = Object.keys(BROWSER_ALIASES_MAP).map(value => (BROWSER_ALIASES_MAP[value]));