fix(Core/Battlegrounds): Fixed timed announcement system for CrossfactionBG module. (#8521)

- Closes #6637

src/server/game/Battlegrounds/BattlegroundQueue.h

@@ -56,6 +56,8 @@ enum BattlegroundQueueGroupTypes
     BG_QUEUE_NORMAL_ALLIANCE,
     BG_QUEUE_NORMAL_HORDE,
 
+    BG_QUEUE_CFBG,
+
     BG_QUEUE_MAX = 10
 };
 
@@ -128,8 +130,8 @@ public:
     ArenaType GetArenaType() { return m_arenaType; }
     BattlegroundTypeId GetBGTypeID() { return m_bgTypeId; }
 
-    void SetQueueAnnouncementTimer(uint32 bracketId, int32 timer) { _queueAnnouncementTimer[bracketId] = timer; }
-    [[nodiscard]] int32 GetQueueAnnouncementTimer(uint32 bracketId) { return _queueAnnouncementTimer[bracketId]; }
+    void SetQueueAnnouncementTimer(uint32 bracketId, int32 timer);
+    [[nodiscard]] int32 GetQueueAnnouncementTimer(uint32 bracketId) const;
 
 private:
     BattlegroundTypeId m_bgTypeId;
@@ -141,6 +143,7 @@ private:
     EventProcessor m_events;
 
     std::array<int32, BG_BRACKET_ID_LAST> _queueAnnouncementTimer;
+    bool _queueAnnouncementCrossfactioned;
 };
 
 /*