sep 25 fixes (#9075)

* on class change: remove owned gear from pinned items

* move dragging item-info closer to the cursor (food / hatching potion)

* remove v-once at attributesPopover (if the parent component is recycled the old data stays active)

* prevent popover to show data of an item that was removed - but the popover stays opened

website/common/script/ops/changeClass.js

@@ -7,7 +7,7 @@ import {
   NotAuthorized,
   BadRequest,
 } from '../libs/errors';
-import { removePinnedGearByClass, addPinnedGearByClass } from './pinnedGearUtils';
+import { removePinnedGearByClass, removePinnedItemsByOwnedGear, addPinnedGearByClass } from './pinnedGearUtils';
 
 function resetClass (user, req = {}) {
   removePinnedGearByClass(user);
@@ -49,6 +49,8 @@ module.exports = function changeClass (user, req = {}, analytics) {
     user.items.gear.owned[`weapon_${klass}_0`] = true;
     if (klass === 'rogue')  user.items.gear.owned[`shield_${klass}_0`] = true;
 
+    removePinnedItemsByOwnedGear(user);
+
     if (analytics) {
       analytics.track('change class', {
         uuid: user._id,