Client: i18n (#8972)

* wip: client: i18n

* remove maxAge from cookies to get same expiration ad localStorage

* set cookies expiration to 10 years

* moment: load translations in browser, moment: only load necessary data, remove jquery, remove bluebird

* ability to change language

* fix logout

* add some requiresLogin: false to static pages

* fix tests

website/client/components/appMenu.vue

@@ -262,7 +262,7 @@ export default {
   methods: {
     logout () {
       localStorage.removeItem('habit-mobile-settings');
-      this.$router.go('/');
+      window.location.href = '/logout';
     },
     showInbox () {
       this.$root.$emit('show::modal', 'inbox-modal');