[WIP] shops + market gear api (#8980)

* lock other classes gear

* fix avatar in equip-gear-modal

* fix seasonal shop

* seasonal : new gear type order

* fix pin gear (and get new gear on buying)

* API: /shops/market-gear  - refactoring pinnedGearUtils - move _isPinned to common/libs

* use shops.getMarketGearCategories to list the marketGear

* use shops.getMarketCategories instead of API-call

* mark gear reward items as locked

* purchase time-travelers stuff + update view + use method instead of http-api + add missing mammoth shop image

* Time Travelers Shop: open/closed state

* time travelers: show gear preview + hide sidebar if closed

* update resized images

* fix lint

website/common/script/libs/inAppRewards.js

@@ -1,6 +1,7 @@
 import content from '../content/index';
 import get from 'lodash/get';
 import getItemInfo from './getItemInfo';
+import shops from './shops';
 
 const officialPinnedItems = content.officialPinnedItems;
 
@@ -12,7 +13,11 @@ module.exports = function getPinnedItems (user) {
 
   const pinnedItems = officialPinnedItemsNotUnpinned.concat(user.pinnedItems);
 
-  return pinnedItems.map(({type, path}) => {
+  let items = pinnedItems.map(({type, path}) => {
     return getItemInfo(user, type, get(content, path));
   });
+
+  shops.checkMarketGearLocked(user, items);
+
+  return items;
 };