Refactor recent messages API (#4763)

This exposes internal functions for testing by splitting the implementation & internal API into separate files

src/providers/twitch/TwitchChannel.cpp

@@ -18,7 +18,7 @@
 #include "providers/bttv/BttvEmotes.hpp"
 #include "providers/bttv/BttvLiveUpdates.hpp"
 #include "providers/bttv/liveupdates/BttvLiveUpdateMessages.hpp"
-#include "providers/RecentMessagesApi.hpp"
+#include "providers/recentmessages/Api.hpp"
 #include "providers/seventv/eventapi/Dispatch.hpp"
 #include "providers/seventv/SeventvAPI.hpp"
 #include "providers/seventv/SeventvEmotes.hpp"
@@ -1108,7 +1108,7 @@ void TwitchChannel::loadRecentMessages()
     }
 
     auto weak = weakOf<Channel>(this);
-    RecentMessagesApi::loadRecentMessages(
+    recentmessages::load(
         this->getName(), weak,
         [weak](const auto &messages) {
             auto shared = weak.lock();
@@ -1163,7 +1163,7 @@ void TwitchChannel::loadRecentMessagesReconnect()
     }
 
     auto weak = weakOf<Channel>(this);
-    RecentMessagesApi::loadRecentMessages(
+    recentmessages::load(
         this->getName(), weak,
         [weak](const auto &messages) {
             auto shared = weak.lock();