fix(sprites): rename February items

website/client/src/assets/css/sprites/spritesmith-main-9.css

@@ -922,31 +922,31 @@
   width: 68px;
   height: 68px;
 }
-.body_mystery_022020 {
+.body_mystery_202002 {
   background-image: url('~@/assets/images/sprites/spritesmith-main-9.png');
   background-position: -460px -727px;
   width: 114px;
   height: 90px;
 }
-.shop_body_mystery_022020 {
+.shop_body_mystery_202002 {
   background-image: url('~@/assets/images/sprites/spritesmith-main-9.png');
   background-position: -690px -1273px;
   width: 68px;
   height: 68px;
 }
-.shop_set_mystery_022020 {
+.shop_set_mystery_202002 {
   background-image: url('~@/assets/images/sprites/spritesmith-main-9.png');
   background-position: -621px -1273px;
   width: 68px;
   height: 68px;
 }
-.shop_weapon_mystery_022020 {
+.shop_weapon_mystery_202002 {
   background-image: url('~@/assets/images/sprites/spritesmith-main-9.png');
   background-position: -276px -1273px;
   width: 68px;
   height: 68px;
 }
-.weapon_mystery_022020 {
+.weapon_mystery_202002 {
   background-image: url('~@/assets/images/sprites/spritesmith-main-9.png');
   background-position: -469px 0px;
   width: 114px;