fix: replace defines with constexpr/const and use more absolute paths for includes (#5527)

bye bye nuuls

src/providers/twitch/ChannelPointReward.hpp

@@ -1,15 +1,11 @@
 #pragma once
 
-#include "common/Aliases.hpp"
 #include "messages/ImageSet.hpp"
 
 #include <QJsonObject>
 
-#define TWITCH_CHANNEL_POINT_REWARD_URL(x)                                  \
-    QString("https://static-cdn.jtvnw.net/custom-reward-images/default-%1") \
-        .arg(x)
-
 namespace chatterino {
+
 struct ChannelPointReward {
     ChannelPointReward(const QJsonObject &redemption);
     ChannelPointReward() = delete;