feat(eventsub): reconnect (#6035)

src/providers/twitch/eventsub/Connection.hpp

@@ -21,6 +21,9 @@ public:
     void onNotification(const lib::messages::Metadata &metadata,
                         const boost::json::value &jv) override;
 
+    void onClose(std::unique_ptr<lib::Listener> self,
+                 const std::optional<std::string> &reconnectURL) override;
+
     void onChannelBan(
         const lib::messages::Metadata &metadata,
         const lib::payload::channel_ban::v1::Payload &payload) override;
@@ -85,7 +88,7 @@ public:
 
     bool isSubscribedTo(const SubscriptionRequest &request) const;
     void markRequestSubscribed(const SubscriptionRequest &request);
-    // TODO: Add an "markRequestUnsubscribed" method
+    void markRequestUnsubscribed(const SubscriptionRequest &request);
 
 private:
     QString sessionID;