Fix shop exclamation mark reappearing (#803)

This was performing the wrong check and would show a notification if
there _wasn't_ an item summon available, compared to the check in
/mypage/info.

Closes #762

DragaliaAPI/DragaliaAPI/Services/Game/LoadService.cs

@@ -89,7 +89,7 @@ public async Task<LoadIndexResponse> BuildIndexData()
                     .Select(x => x.MapToUserSummonList()),
 
                 FriendNotice = new(0, 0),
-                ShopNotice = new ShopNotice(savefile.ShopInfo?.DailySummonCount != 0),
+                ShopNotice = new ShopNotice(savefile.ShopInfo?.DailySummonCount == 0),
                 GuildNotice = new(0, false, false, false, false),
                 StaminaMultiSystemMax = userService.StaminaMultiMax,
                 StaminaMultiUserMax = 12,