[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/server/controllers/api-v3/shops.js

@@ -31,6 +31,29 @@ api.getMarketItems = {
   },
 };
 
+/**
+ * @apiIgnore
+ * @api {get} /api/v3/shops/market-gear get the available gear for the market
+ * @apiName GetMarketGear
+ * @apiGroup Shops
+ *
+ * @apiSuccess {Object} data List of available gear
+ */
+api.getMarketGear = {
+  method: 'GET',
+  url: '/shops/market-gear',
+  middlewares: [authWithHeaders()],
+  async handler (req, res) {
+    let user = res.locals.user;
+
+    let resObject = {
+      categories: shops.getMarketGearCategories(user, req.language),
+    };
+
+    res.respond(200, resObject);
+  },
+};
+
 /**
  * @apiIgnore
  * @api {get} /api/v3/shops/quests get the available items for the quests shop
@@ -109,6 +132,7 @@ api.getSeasonalShopItems = {
       text: res.t('seasonalShop'),
       notes: res.t('seasonalShopClosedText'),
       imageName: 'seasonalshop_closed',
+      opened: false,
       categories: shops.getSeasonalShopCategories(user, req.language),
     };