Added support for Twitch's Chat Replies (#3722)

Co-authored-by: Rasmus Karlsson <rasmus.karlsson@pajlada.com>

src/providers/twitch/TwitchMessageBuilder.hpp

@@ -2,6 +2,7 @@
 
 #include "common/Aliases.hpp"
 #include "common/Outcome.hpp"
+#include "messages/MessageThread.hpp"
 #include "messages/SharedMessageBuilder.hpp"
 #include "providers/twitch/ChannelPointReward.hpp"
 #include "providers/twitch/PubSubActions.hpp"
@@ -45,6 +46,8 @@ public:
     void triggerHighlights() override;
     MessagePtr build() override;
 
+    void setThread(std::shared_ptr<MessageThread> thread);
+
     static void appendChannelPointRewardMessage(
         const ChannelPointReward &reward, MessageBuilder *builder, bool isMod,
         bool isBroadcaster);
@@ -105,6 +108,7 @@ private:
     int bitsLeft;
     bool bitsStacked = false;
     bool historicalMessage_ = false;
+    std::shared_ptr<MessageThread> thread_;
 
     QString userId_;
     bool senderIsBroadcaster{};