update helpscout links to zenhub

ui/app/components/pages/add-token/token-list/token-list-placeholder/token-list-placeholder.component.js

@@ -15,7 +15,7 @@ export default class TokenListPlaceholder extends Component {
         </div>
         <a
           className="token-list-placeholder__link"
-          href="http://metamask.helpscoutdocs.com/article/16-managing-erc20-tokens"
+          href="https://consensys.zendesk.com/hc/en-us/articles/360004135092"
           target="_blank"
           rel="noopener noreferrer"
         >

ui/app/components/pages/create-account/import-account/index.js

@@ -46,7 +46,7 @@ AccountImportSubview.prototype.render = function () {
           },
           onClick: () => {
             global.platform.openWindow({
-              url: 'https://metamask.helpscoutdocs.com/article/17-what-are-loose-accounts',
+              url: 'https://consensys.zendesk.com/hc/en-us/articles/360004180111-What-are-imported-accounts-New-UI',
             })
           },
         }, this.context.t('here')),