Twitch API: v5 to Helix migration (#1560)

There's a document in src/providers/twitch/api which describes how we interact with the Twitch API.
Keeping this up to date might be a healthy way for us to ensure we keep using the right APIs for the right job.

src/main.cpp

@@ -9,6 +9,8 @@
 #include "common/Args.hpp"
 #include "common/Modes.hpp"
 #include "common/Version.hpp"
+#include "providers/twitch/api/Helix.hpp"
+#include "providers/twitch/api/Kraken.hpp"
 #include "singletons/Paths.hpp"
 #include "singletons/Settings.hpp"
 #include "util/IncognitoBrowser.hpp"
@@ -36,6 +38,9 @@ int main(int argc, char **argv)
     }
     else
     {
+        Helix::initialize();
+        Kraken::initialize();
+
         Paths *paths{};
 
         try